diff --git a/check_i18n.js b/check_i18n.js
new file mode 100644
index 0000000..9328cec
--- /dev/null
+++ b/check_i18n.js
@@ -0,0 +1,37 @@
+
+const fs = require('fs');
+
+const fileContent = fs.readFileSync('src/composables/useI18n.js', 'utf8');
+
+// Extract the messages object
+const match = fileContent.match(/const messages = ({[\s\S]*?});/);
+if (!match) {
+  console.error('Could not find messages object');
+  process.exit(1);
+}
+
+// We need to make the string valid JS to eval it.
+// It seems the content inside `const messages = { ... };` is valid JS object notation.
+// But we need to be careful about imports or other things if we were to `eval` the whole file.
+// We'll just `eval` the object part.
+
+const messagesStr = match[1];
+const messages = eval(`(${messagesStr})`);
+
+const enKeys = Object.keys(messages.en);
+const languages = Object.keys(messages);
+
+const missing = {};
+
+languages.forEach(lang => {
+  if (lang === 'en') return;
+  
+  const langKeys = Object.keys(messages[lang]);
+  const missingKeys = enKeys.filter(k => !langKeys.includes(k));
+  
+  if (missingKeys.length > 0) {
+    missing[lang] = missingKeys;
+  }
+});
+
+console.log(JSON.stringify(missing, null, 2));
diff --git a/difficulty_simulation_results.csv b/difficulty_simulation_results.csv
new file mode 100644
index 0000000..f02957d
--- /dev/null
+++ b/difficulty_simulation_results.csv
@@ -0,0 +1,118 @@
+size,density,avg_solved_percent,min_solved_percent,max_solved_percent,avg_time_ms
+5,0.1,89.40,36.00,100.00,0.03
+5,0.2,74.20,8.00,100.00,0.04
+5,0.3,74.20,0.00,100.00,0.04
+5,0.4,80.80,8.00,100.00,0.03
+5,0.5,96.80,68.00,100.00,0.03
+5,0.6,97.60,84.00,100.00,0.03
+5,0.7,99.20,84.00,100.00,0.03
+5,0.8,100.00,100.00,100.00,0.02
+5,0.9,100.00,100.00,100.00,0.02
+10,0.1,56.60,19.00,86.00,0.04
+10,0.2,19.80,0.00,51.00,0.05
+10,0.3,15.75,0.00,73.00,0.07
+10,0.4,54.05,0.00,100.00,0.13
+10,0.5,91.80,59.00,100.00,0.17
+10,0.6,99.80,96.00,100.00,0.07
+10,0.7,99.80,96.00,100.00,0.05
+10,0.8,100.00,100.00,100.00,0.04
+10,0.9,100.00,100.00,100.00,0.02
+15,0.1,37.04,13.33,61.78,0.05
+15,0.2,9.78,0.00,26.67,0.03
+15,0.3,1.89,0.00,8.00,0.03
+15,0.4,11.82,0.00,61.33,0.08
+15,0.5,68.20,2.67,100.00,0.14
+15,0.6,99.56,96.44,100.00,0.09
+15,0.7,99.78,97.33,100.00,0.07
+15,0.8,100.00,100.00,100.00,0.05
+15,0.9,100.00,100.00,100.00,0.03
+20,0.1,22.59,5.00,41.50,0.04
+20,0.2,3.25,0.00,14.50,0.04
+20,0.3,0.56,0.00,5.00,0.04
+20,0.4,1.46,0.00,3.25,0.07
+20,0.5,36.75,1.25,99.00,0.26
+20,0.6,99.80,99.00,100.00,0.23
+20,0.7,99.95,99.00,100.00,0.13
+20,0.8,100.00,100.00,100.00,0.09
+20,0.9,100.00,100.00,100.00,0.05
+25,0.1,16.00,7.84,32.80,0.06
+25,0.2,0.00,0.00,0.00,0.04
+25,0.3,0.05,0.00,0.64,0.06
+25,0.4,0.89,0.00,9.44,0.12
+25,0.5,19.13,1.12,96.48,0.35
+25,0.6,99.25,94.88,100.00,0.50
+25,0.7,99.90,99.36,100.00,0.24
+25,0.8,100.00,100.00,100.00,0.15
+25,0.9,99.97,99.36,100.00,0.08
+30,0.1,7.99,0.00,16.00,0.08
+30,0.2,0.17,0.00,3.33,0.07
+30,0.3,0.00,0.00,0.00,0.08
+30,0.4,0.38,0.00,4.11,0.18
+30,0.5,5.42,0.78,21.44,0.41
+30,0.6,99.42,94.78,100.00,0.94
+30,0.7,99.93,99.56,100.00,0.42
+30,0.8,100.00,100.00,100.00,0.22
+30,0.9,100.00,100.00,100.00,0.13
+35,0.1,5.65,0.00,13.80,0.11
+35,0.2,0.14,0.00,2.86,0.10
+35,0.3,0.00,0.00,0.00,0.13
+35,0.4,0.13,0.00,0.57,0.22
+35,0.5,4.42,0.41,23.18,0.56
+35,0.6,91.11,8.41,100.00,1.58
+35,0.7,99.97,99.67,100.00,0.60
+35,0.8,100.00,100.00,100.00,0.33
+35,0.9,100.00,100.00,100.00,0.17
+40,0.1,2.73,0.00,9.81,0.13
+40,0.2,0.00,0.00,0.00,0.13
+40,0.3,0.00,0.00,0.00,0.18
+40,0.4,0.03,0.00,0.31,0.27
+40,0.5,2.14,0.00,9.56,0.69
+40,0.6,91.44,22.31,100.00,2.92
+40,0.7,99.99,99.75,100.00,0.84
+40,0.8,100.00,100.00,100.00,0.43
+40,0.9,100.00,100.00,100.00,0.24
+45,0.1,1.78,0.00,4.69,0.17
+45,0.2,0.00,0.00,0.00,0.17
+45,0.3,0.00,0.00,0.00,0.24
+45,0.4,0.01,0.00,0.15,0.33
+45,0.5,1.44,0.40,5.14,0.96
+45,0.6,81.72,6.02,100.00,5.28
+45,0.7,99.94,99.41,100.00,1.28
+45,0.8,100.00,100.00,100.00,0.64
+45,0.9,100.00,100.00,100.00,0.30
+50,0.1,1.70,0.00,5.92,0.20
+50,0.2,0.00,0.00,0.00,0.23
+50,0.3,0.00,0.00,0.00,0.30
+50,0.4,0.01,0.00,0.16,0.38
+50,0.5,0.51,0.00,1.80,0.90
+50,0.6,73.26,5.60,100.00,7.94
+50,0.7,99.96,99.76,100.00,1.63
+50,0.8,100.00,100.00,100.00,0.83
+50,0.9,100.00,100.00,100.00,0.41
+60,0.1,0.17,0.00,1.67,0.24
+60,0.2,0.00,0.00,0.00,0.35
+60,0.3,0.00,0.00,0.00,0.50
+60,0.4,0.00,0.00,0.06,0.64
+60,0.5,0.23,0.00,1.67,1.24
+60,0.6,35.02,1.33,100.00,10.76
+60,0.7,99.97,99.83,100.00,2.96
+60,0.8,100.00,100.00,100.00,1.27
+60,0.9,100.00,100.00,100.00,0.62
+70,0.1,0.14,0.00,1.43,0.34
+70,0.2,0.00,0.00,0.00,0.54
+70,0.3,0.00,0.00,0.00,0.76
+70,0.4,0.00,0.00,0.00,0.96
+70,0.5,0.04,0.00,0.29,1.49
+70,0.6,16.40,1.00,99.71,22.21
+70,0.7,99.97,99.73,100.00,4.92
+70,0.8,100.00,99.92,100.00,2.03
+70,0.9,100.00,100.00,100.00,0.89
+80,0.1,0.00,0.00,0.00,0.44
+80,0.2,0.00,0.00,0.00,0.78
+80,0.3,0.00,0.00,0.00,1.07
+80,0.4,0.00,0.00,0.00,1.34
+80,0.5,0.01,0.00,0.08,1.97
+80,0.6,1.21,0.41,2.30,3.92
+80,0.7,99.98,99.94,100.00,7.79
+80,0.8,100.00,100.00,100.00,3.14
+80,0.9,100.00,100.00,100.00,1.31
\ No newline at end of file
diff --git a/difficulty_simulation_results.json b/difficulty_simulation_results.json
new file mode 100644
index 0000000..e1ddf22
--- /dev/null
+++ b/difficulty_simulation_results.json
@@ -0,0 +1,938 @@
+[
+  {
+    "size": 5,
+    "density": 0.1,
+    "avgSolved": 89.4,
+    "minSolved": 36,
+    "maxSolved": 100,
+    "avgTime": 0.031666799999999905
+  },
+  {
+    "size": 5,
+    "density": 0.2,
+    "avgSolved": 74.2,
+    "minSolved": 8,
+    "maxSolved": 100,
+    "avgTime": 0.03671869999999924
+  },
+  {
+    "size": 5,
+    "density": 0.3,
+    "avgSolved": 74.2,
+    "minSolved": 0,
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+    "avgTime": 0.04439559999999983
+  },
+  {
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+  },
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+  },
+  {
+    "size": 5,
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+  },
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+  },
+  {
+    "size": 5,
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+    "maxSolved": 100,
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+  },
+  {
+    "size": 5,
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+    "maxSolved": 100,
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+  },
+  {
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+  },
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+    "maxSolved": 2.857142857142857,
+    "avgTime": 0.09598544999999917
+  },
+  {
+    "size": 35,
+    "density": 0.3,
+    "avgSolved": 0,
+    "minSolved": 0,
+    "maxSolved": 0,
+    "avgTime": 0.1290145000000038
+  },
+  {
+    "size": 35,
+    "density": 0.4,
+    "avgSolved": 0.1346938775510204,
+    "minSolved": 0,
+    "maxSolved": 0.5714285714285714,
+    "avgTime": 0.21904799999999797
+  },
+  {
+    "size": 35,
+    "density": 0.5,
+    "avgSolved": 4.424489795918367,
+    "minSolved": 0.40816326530612246,
+    "maxSolved": 23.183673469387756,
+    "avgTime": 0.5596769500000022
+  },
+  {
+    "size": 35,
+    "density": 0.6,
+    "avgSolved": 91.1061224489796,
+    "minSolved": 8.408163265306122,
+    "maxSolved": 100,
+    "avgTime": 1.5827311000000024
+  },
+  {
+    "size": 35,
+    "density": 0.7,
+    "avgSolved": 99.9673469387755,
+    "minSolved": 99.67346938775509,
+    "maxSolved": 100,
+    "avgTime": 0.5970167499999988
+  },
+  {
+    "size": 35,
+    "density": 0.8,
+    "avgSolved": 100,
+    "minSolved": 100,
+    "maxSolved": 100,
+    "avgTime": 0.33084175000000327
+  },
+  {
+    "size": 35,
+    "density": 0.9,
+    "avgSolved": 100,
+    "minSolved": 100,
+    "maxSolved": 100,
+    "avgTime": 0.1685022000000032
+  },
+  {
+    "size": 40,
+    "density": 0.1,
+    "avgSolved": 2.734375,
+    "minSolved": 0,
+    "maxSolved": 9.8125,
+    "avgTime": 0.13156869999999826
+  },
+  {
+    "size": 40,
+    "density": 0.2,
+    "avgSolved": 0,
+    "minSolved": 0,
+    "maxSolved": 0,
+    "avgTime": 0.13052910000000112
+  },
+  {
+    "size": 40,
+    "density": 0.3,
+    "avgSolved": 0,
+    "minSolved": 0,
+    "maxSolved": 0,
+    "avgTime": 0.17675199999999905
+  },
+  {
+    "size": 40,
+    "density": 0.4,
+    "avgSolved": 0.03125,
+    "minSolved": 0,
+    "maxSolved": 0.3125,
+    "avgTime": 0.26616039999999686
+  },
+  {
+    "size": 40,
+    "density": 0.5,
+    "avgSolved": 2.14375,
+    "minSolved": 0,
+    "maxSolved": 9.5625,
+    "avgTime": 0.694316649999999
+  },
+  {
+    "size": 40,
+    "density": 0.6,
+    "avgSolved": 91.44375,
+    "minSolved": 22.3125,
+    "maxSolved": 100,
+    "avgTime": 2.9244042000000006
+  },
+  {
+    "size": 40,
+    "density": 0.7,
+    "avgSolved": 99.9875,
+    "minSolved": 99.75,
+    "maxSolved": 100,
+    "avgTime": 0.8381519999999967
+  },
+  {
+    "size": 40,
+    "density": 0.8,
+    "avgSolved": 100,
+    "minSolved": 100,
+    "maxSolved": 100,
+    "avgTime": 0.4339062999999925
+  },
+  {
+    "size": 40,
+    "density": 0.9,
+    "avgSolved": 100,
+    "minSolved": 100,
+    "maxSolved": 100,
+    "avgTime": 0.2375938000000076
+  },
+  {
+    "size": 45,
+    "density": 0.1,
+    "avgSolved": 1.7827160493827159,
+    "minSolved": 0,
+    "maxSolved": 4.691358024691358,
+    "avgTime": 0.1660813500000046
+  },
+  {
+    "size": 45,
+    "density": 0.2,
+    "avgSolved": 0,
+    "minSolved": 0,
+    "maxSolved": 0,
+    "avgTime": 0.1715666999999968
+  },
+  {
+    "size": 45,
+    "density": 0.3,
+    "avgSolved": 0,
+    "minSolved": 0,
+    "maxSolved": 0,
+    "avgTime": 0.23760415000000706
+  },
+  {
+    "size": 45,
+    "density": 0.4,
+    "avgSolved": 0.012345679012345678,
+    "minSolved": 0,
+    "maxSolved": 0.14814814814814814,
+    "avgTime": 0.333931249999992
+  },
+  {
+    "size": 45,
+    "density": 0.5,
+    "avgSolved": 1.439506172839506,
+    "minSolved": 0.39506172839506176,
+    "maxSolved": 5.135802469135802,
+    "avgTime": 0.9644125499999916
+  },
+  {
+    "size": 45,
+    "density": 0.6,
+    "avgSolved": 81.71851851851852,
+    "minSolved": 6.0246913580246915,
+    "maxSolved": 100,
+    "avgTime": 5.281324949999998
+  },
+  {
+    "size": 45,
+    "density": 0.7,
+    "avgSolved": 99.94074074074075,
+    "minSolved": 99.4074074074074,
+    "maxSolved": 100,
+    "avgTime": 1.2768960000000107
+  },
+  {
+    "size": 45,
+    "density": 0.8,
+    "avgSolved": 100,
+    "minSolved": 100,
+    "maxSolved": 100,
+    "avgTime": 0.638566650000007
+  },
+  {
+    "size": 45,
+    "density": 0.9,
+    "avgSolved": 100,
+    "minSolved": 100,
+    "maxSolved": 100,
+    "avgTime": 0.3004915999999923
+  },
+  {
+    "size": 50,
+    "density": 0.1,
+    "avgSolved": 1.7,
+    "minSolved": 0,
+    "maxSolved": 5.92,
+    "avgTime": 0.20294785000000387
+  },
+  {
+    "size": 50,
+    "density": 0.2,
+    "avgSolved": 0,
+    "minSolved": 0,
+    "maxSolved": 0,
+    "avgTime": 0.23199789999999892
+  },
+  {
+    "size": 50,
+    "density": 0.3,
+    "avgSolved": 0,
+    "minSolved": 0,
+    "maxSolved": 0,
+    "avgTime": 0.29876259999999205
+  },
+  {
+    "size": 50,
+    "density": 0.4,
+    "avgSolved": 0.008,
+    "minSolved": 0,
+    "maxSolved": 0.16,
+    "avgTime": 0.38459799999998834
+  },
+  {
+    "size": 50,
+    "density": 0.5,
+    "avgSolved": 0.5099999999999999,
+    "minSolved": 0,
+    "maxSolved": 1.7999999999999998,
+    "avgTime": 0.8961771499999941
+  },
+  {
+    "size": 50,
+    "density": 0.6,
+    "avgSolved": 73.258,
+    "minSolved": 5.6000000000000005,
+    "maxSolved": 100,
+    "avgTime": 7.937735449999991
+  },
+  {
+    "size": 50,
+    "density": 0.7,
+    "avgSolved": 99.96399999999998,
+    "minSolved": 99.76,
+    "maxSolved": 100,
+    "avgTime": 1.6324250000000062
+  },
+  {
+    "size": 50,
+    "density": 0.8,
+    "avgSolved": 100,
+    "minSolved": 100,
+    "maxSolved": 100,
+    "avgTime": 0.8293270000000064
+  },
+  {
+    "size": 50,
+    "density": 0.9,
+    "avgSolved": 100,
+    "minSolved": 100,
+    "maxSolved": 100,
+    "avgTime": 0.41459575000000654
+  },
+  {
+    "size": 60,
+    "density": 0.1,
+    "avgSolved": 0.16666666666666669,
+    "minSolved": 0,
+    "maxSolved": 1.6666666666666667,
+    "avgTime": 0.2432124999999928
+  },
+  {
+    "size": 60,
+    "density": 0.2,
+    "avgSolved": 0,
+    "minSolved": 0,
+    "maxSolved": 0,
+    "avgTime": 0.35082704999999237
+  },
+  {
+    "size": 60,
+    "density": 0.3,
+    "avgSolved": 0,
+    "minSolved": 0,
+    "maxSolved": 0,
+    "avgTime": 0.49827310000000014
+  },
+  {
+    "size": 60,
+    "density": 0.4,
+    "avgSolved": 0.0027777777777777775,
+    "minSolved": 0,
+    "maxSolved": 0.05555555555555555,
+    "avgTime": 0.6393062499999985
+  },
+  {
+    "size": 60,
+    "density": 0.5,
+    "avgSolved": 0.23055555555555554,
+    "minSolved": 0,
+    "maxSolved": 1.6666666666666667,
+    "avgTime": 1.2402395500000012
+  },
+  {
+    "size": 60,
+    "density": 0.6,
+    "avgSolved": 35.01805555555556,
+    "minSolved": 1.3333333333333335,
+    "maxSolved": 100,
+    "avgTime": 10.759754149999992
+  },
+  {
+    "size": 60,
+    "density": 0.7,
+    "avgSolved": 99.96944444444445,
+    "minSolved": 99.83333333333333,
+    "maxSolved": 100,
+    "avgTime": 2.964204100000029
+  },
+  {
+    "size": 60,
+    "density": 0.8,
+    "avgSolved": 100,
+    "minSolved": 100,
+    "maxSolved": 100,
+    "avgTime": 1.2736664999999903
+  },
+  {
+    "size": 60,
+    "density": 0.9,
+    "avgSolved": 100,
+    "minSolved": 100,
+    "maxSolved": 100,
+    "avgTime": 0.6249353999999812
+  },
+  {
+    "size": 70,
+    "density": 0.1,
+    "avgSolved": 0.14285714285714285,
+    "minSolved": 0,
+    "maxSolved": 1.4285714285714286,
+    "avgTime": 0.34277719999998907
+  },
+  {
+    "size": 70,
+    "density": 0.2,
+    "avgSolved": 0,
+    "minSolved": 0,
+    "maxSolved": 0,
+    "avgTime": 0.5435105000000249
+  },
+  {
+    "size": 70,
+    "density": 0.3,
+    "avgSolved": 0,
+    "minSolved": 0,
+    "maxSolved": 0,
+    "avgTime": 0.7600602999999865
+  },
+  {
+    "size": 70,
+    "density": 0.4,
+    "avgSolved": 0,
+    "minSolved": 0,
+    "maxSolved": 0,
+    "avgTime": 0.9591250999999943
+  },
+  {
+    "size": 70,
+    "density": 0.5,
+    "avgSolved": 0.04081632653061225,
+    "minSolved": 0,
+    "maxSolved": 0.2857142857142857,
+    "avgTime": 1.491010399999982
+  },
+  {
+    "size": 70,
+    "density": 0.6,
+    "avgSolved": 16.403061224489797,
+    "minSolved": 1,
+    "maxSolved": 99.71428571428571,
+    "avgTime": 22.21432699999999
+  },
+  {
+    "size": 70,
+    "density": 0.7,
+    "avgSolved": 99.96836734693878,
+    "minSolved": 99.73469387755102,
+    "maxSolved": 100,
+    "avgTime": 4.92020829999999
+  },
+  {
+    "size": 70,
+    "density": 0.8,
+    "avgSolved": 99.99591836734695,
+    "minSolved": 99.91836734693878,
+    "maxSolved": 100,
+    "avgTime": 2.0306394499999554
+  },
+  {
+    "size": 70,
+    "density": 0.9,
+    "avgSolved": 100,
+    "minSolved": 100,
+    "maxSolved": 100,
+    "avgTime": 0.8882499500000336
+  },
+  {
+    "size": 80,
+    "density": 0.1,
+    "avgSolved": 0,
+    "minSolved": 0,
+    "maxSolved": 0,
+    "avgTime": 0.4418666499999858
+  },
+  {
+    "size": 80,
+    "density": 0.2,
+    "avgSolved": 0,
+    "minSolved": 0,
+    "maxSolved": 0,
+    "avgTime": 0.7795667999999978
+  },
+  {
+    "size": 80,
+    "density": 0.3,
+    "avgSolved": 0,
+    "minSolved": 0,
+    "maxSolved": 0,
+    "avgTime": 1.0745101999999747
+  },
+  {
+    "size": 80,
+    "density": 0.4,
+    "avgSolved": 0,
+    "minSolved": 0,
+    "maxSolved": 0,
+    "avgTime": 1.3407041500000105
+  },
+  {
+    "size": 80,
+    "density": 0.5,
+    "avgSolved": 0.0125,
+    "minSolved": 0,
+    "maxSolved": 0.078125,
+    "avgTime": 1.9724897000000283
+  },
+  {
+    "size": 80,
+    "density": 0.6,
+    "avgSolved": 1.21484375,
+    "minSolved": 0.40625,
+    "maxSolved": 2.296875,
+    "avgTime": 3.9163123999999927
+  },
+  {
+    "size": 80,
+    "density": 0.7,
+    "avgSolved": 99.978125,
+    "minSolved": 99.9375,
+    "maxSolved": 100,
+    "avgTime": 7.790070799999967
+  },
+  {
+    "size": 80,
+    "density": 0.8,
+    "avgSolved": 100,
+    "minSolved": 100,
+    "maxSolved": 100,
+    "avgTime": 3.1350061999999754
+  },
+  {
+    "size": 80,
+    "density": 0.9,
+    "avgSolved": 100,
+    "minSolved": 100,
+    "maxSolved": 100,
+    "avgTime": 1.3134414999999535
+  }
+]
\ No newline at end of file
diff --git a/scripts/add_simulation_translations.cjs b/scripts/add_simulation_translations.cjs
new file mode 100644
index 0000000..0b2e1f7
--- /dev/null
+++ b/scripts/add_simulation_translations.cjs
@@ -0,0 +1,61 @@
+const fs = require('fs');
+const path = require('path');
+
+const filePath = path.join(__dirname, '../src/composables/useI18n.js');
+let content = fs.readFileSync(filePath, 'utf8');
+
+const newKeys = {
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation'
+};
+
+const lines = content.split('\n');
+const processedLines = [];
+let currentLang = null;
+
+for (let i = 0; i < lines.length; i++) {
+    let line = lines[i];
+    
+    // Detect start of language block
+    const startMatch = line.match(/^\s{2}(['"]?[\w-]+['"]?): \{/);
+    if (startMatch) {
+        currentLang = startMatch[1].replace(/['"]/g, '');
+    }
+
+    // Detect end of language block
+    if (currentLang && (line.trim() === '},' || line.trim() === '}')) {
+        if (currentLang !== 'pl' && currentLang !== 'en') {
+            // Ensure previous line has comma
+            if (processedLines.length > 0) {
+                let lastLine = processedLines[processedLines.length - 1];
+                if (!lastLine.trim().endsWith(',') && !lastLine.trim().endsWith('{')) {
+                    processedLines[processedLines.length - 1] = lastLine + ',';
+                }
+            }
+
+            // Append new keys
+            Object.entries(newKeys).forEach(([key, value]) => {
+                processedLines.push(`    '${key}': '${value}',`);
+            });
+        }
+        currentLang = null;
+    }
+    
+    processedLines.push(line);
+}
+
+const finalContent = processedLines.join('\n');
+fs.writeFileSync(filePath, finalContent);
+console.log('Successfully added simulation translations to all languages.');
diff --git a/scripts/add_simulation_translations.js b/scripts/add_simulation_translations.js
new file mode 100644
index 0000000..b0c657e
--- /dev/null
+++ b/scripts/add_simulation_translations.js
@@ -0,0 +1,97 @@
+
+const fs = require('fs');
+const path = require('path');
+
+const filePath = path.join(__dirname, '../src/composables/useI18n.js');
+let content = fs.readFileSync(filePath, 'utf8');
+
+const newKeys = {
+    'custom.simulationHelp': 'How is this calculated?',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation'
+};
+
+// Regex to match the end of a language block
+// Matches "  }," or "  }" at the start of a line
+const blockEndRegex = /^(\s{2})\},?$/gm;
+
+let newContent = content.replace(blockEndRegex, (match, indent, offset) => {
+    // Determine which language we are closing
+    const precedingText = content.substring(0, offset);
+    const langMatch = precedingText.match(/^\s{2}(\w+([-]\w+)?): \{/gm);
+    
+    if (!langMatch) return match;
+    const currentLangLine = langMatch[langMatch.length - 1];
+    const currentLang = currentLangLine.match(/^\s{2}(\w+([-]\w+)?): \{/)[1];
+
+    // Skip pl and en as they are already updated
+    if (currentLang === 'pl' || currentLang === 'en') {
+        return match;
+    }
+
+    // Check if the previous line has a comma
+    // We need to look at the lines before the match
+    // This is tricky with replace callback. 
+    // Easier strategy: Just insert the keys. 
+    // If the file is well formatted, the last item might or might not have a comma.
+    // But we can ensure *our* inserted block starts with a comma if needed? 
+    // No, standard JS objects need comma after previous item.
+    
+    // Let's assume we simply inject before the closing brace.
+    // We'll add a comma to the previous line if it doesn't have one?
+    // That's hard with regex replace on the closing brace only.
+    
+    // Alternative: Split by lines and process.
+    return match; // Placeholder, we will process by lines below.
+});
+
+const lines = content.split('\n');
+const processedLines = [];
+let currentLang = null;
+
+for (let i = 0; i < lines.length; i++) {
+    let line = lines[i];
+    
+    // Detect start of language block
+    const startMatch = line.match(/^\s{2}(['"]?[\w-]+['"]?): \{/);
+    if (startMatch) {
+        currentLang = startMatch[1].replace(/['"]/g, '');
+    }
+
+    // Detect end of language block
+    if (currentLang && (line.trim() === '},' || line.trim() === '}')) {
+        if (currentLang !== 'pl' && currentLang !== 'en') {
+            // Ensure previous line has comma
+            if (processedLines.length > 0) {
+                let lastLine = processedLines[processedLines.length - 1];
+                if (!lastLine.trim().endsWith(',') && !lastLine.trim().endsWith('{')) {
+                    processedLines[processedLines.length - 1] = lastLine + ',';
+                }
+            }
+
+            // Append new keys
+            Object.entries(newKeys).forEach(([key, value]) => {
+                processedLines.push(`    '${key}': '${value}',`);
+            });
+            
+            // Remove trailing comma from last inserted item if we want strictly JSON-like (but JS allows it)
+            // It's fine to leave it.
+        }
+        currentLang = null;
+    }
+    
+    processedLines.push(line);
+}
+
+const finalContent = processedLines.join('\n');
+fs.writeFileSync(filePath, finalContent);
+console.log('Successfully added simulation translations to all languages.');
diff --git a/src/components/CustomGameModal.vue b/src/components/CustomGameModal.vue
index 178e260..77fd2aa 100644
--- a/src/components/CustomGameModal.vue
+++ b/src/components/CustomGameModal.vue
@@ -305,7 +305,7 @@ const confirm = () => {
 
       <div class="advanced-toggle">
           <button class="btn-text" @click="toggleAdvanced">
-              {{ showAdvanced ? 'Ukryj mapę trudności' : 'Pokaż mapę trudności' }}
+              {{ showAdvanced ? t('custom.hideMap') : t('custom.showMap') }}
           </button>
       </div>
       
diff --git a/src/composables/useI18n.js b/src/composables/useI18n.js
index c0b885e..52c6328 100644
--- a/src/composables/useI18n.js
+++ b/src/composables/useI18n.js
@@ -289,7 +289,9 @@ const messages = {
     'simulation.table.size': 'Size',
     'simulation.table.density': 'Density',
     'simulation.table.solved': 'Solved (Logic)',
-    'simulation.empty': 'Press Start to run Monte Carlo simulation'
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map'
   },
   zh: {
     'app.title': 'Nonograms',
@@ -364,7 +366,21 @@ const messages = {
     'language.searchLabel': '搜索语言',
     'language.searchPlaceholder': '输入语言名称...',
     'nav.newGame': '新游戏',
-    'nav.guide': '指南'
+    'nav.guide': '指南',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   'zh-hant': {
     'app.title': 'Nonograms',
@@ -431,7 +447,21 @@ const messages = {
     'language.searchLabel': '搜尋語言',
     'language.searchPlaceholder': '輸入語言名稱...',
     'nav.newGame': '新遊戲',
-    'nav.guide': '指南'
+    'nav.guide': '指南',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   hi: {
     'app.title': 'Nonograms',
@@ -497,7 +527,21 @@ const messages = {
     'language.searchLabel': 'भाषा खोजें',
     'language.searchPlaceholder': 'भाषा का नाम लिखें...',
     'nav.newGame': 'नया खेल',
-    'nav.guide': 'गाइड'
+    'nav.guide': 'गाइड',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   es: {
     'app.title': 'Nonograms',
@@ -571,7 +615,21 @@ const messages = {
     'language.searchLabel': 'Buscar idioma',
     'language.searchPlaceholder': 'Escribe el nombre del idioma...',
     'nav.newGame': 'NUEVO JUEGO',
-    'nav.guide': 'GUÍA'
+    'nav.guide': 'GUÍA',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   fr: {
     'app.title': 'Nonograms',
@@ -645,7 +703,21 @@ const messages = {
     'language.searchLabel': 'Rechercher une langue',
     'language.searchPlaceholder': 'Tapez le nom de la langue...',
     'nav.newGame': 'NOUVEAU JEU',
-    'nav.guide': 'GUIDE'
+    'nav.guide': 'GUIDE',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   ar: {
     'app.title': 'Nonograms',
@@ -719,7 +791,21 @@ const messages = {
     'language.searchLabel': 'ابحث عن لغة',
     'language.searchPlaceholder': 'اكتب اسم اللغة...',
     'nav.newGame': 'لعبة جديدة',
-    'nav.guide': 'دليل'
+    'nav.guide': 'دليل',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   bn: {
     'app.title': 'Nonograms',
@@ -785,7 +871,21 @@ const messages = {
     'language.searchLabel': 'ভাষা অনুসন্ধান করুন',
     'language.searchPlaceholder': 'ভাষার নাম লিখুন...',
     'nav.newGame': 'নতুন খেলা',
-    'nav.guide': 'নির্দেশিকা'
+    'nav.guide': 'নির্দেশিকা',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   ru: {
     'app.title': 'Nonograms',
@@ -859,7 +959,21 @@ const messages = {
     'language.searchLabel': 'Поиск языка',
     'language.searchPlaceholder': 'Введите название языка...',
     'nav.newGame': 'НОВАЯ ИГРА',
-    'nav.guide': 'РУКОВОДСТВО'
+    'nav.guide': 'РУКОВОДСТВО',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   pt: {
     'app.title': 'Nonograms',
@@ -925,7 +1039,21 @@ const messages = {
     'language.searchLabel': 'Buscar idioma',
     'language.searchPlaceholder': 'Digite o nome do idioma...',
     'nav.newGame': 'NOVO JOGO',
-    'nav.guide': 'GUIA'
+    'nav.guide': 'GUIA',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   ur: {
     'app.title': 'Nonograms',
@@ -991,7 +1119,21 @@ const messages = {
     'language.searchLabel': 'زبان تلاش کریں',
     'language.searchPlaceholder': 'زبان کا نام درج کریں...',
     'nav.newGame': 'نیا کھیل',
-    'nav.guide': 'رہنما'
+    'nav.guide': 'رہنما',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   }
   ,
   de: {
@@ -1066,7 +1208,21 @@ const messages = {
     'language.searchLabel': 'Sprache suchen',
     'language.searchPlaceholder': 'Sprachname eingeben...',
     'nav.newGame': 'NEUES SPIEL',
-    'nav.guide': 'ANLEITUNG'
+    'nav.guide': 'ANLEITUNG',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   it: {
     'app.title': 'Nonograms',
@@ -1132,7 +1288,21 @@ const messages = {
     'language.searchLabel': 'Cerca lingua',
     'language.searchPlaceholder': 'Digita nome della lingua...',
     'nav.newGame': 'NUOVO GIOCO',
-    'nav.guide': 'GUIDA'
+    'nav.guide': 'GUIDA',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   nl: {
     'app.title': 'Nonograms',
@@ -1198,7 +1368,21 @@ const messages = {
     'language.searchLabel': 'Zoek taal',
     'language.searchPlaceholder': 'Voer taalnaam in...',
     'nav.newGame': 'NIEUW SPEL',
-    'nav.guide': 'HANDLEIDING'
+    'nav.guide': 'HANDLEIDING',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   sv: {
     'app.title': 'Nonograms',
@@ -1253,7 +1437,21 @@ const messages = {
     'language.searchLabel': 'Sök språk',
     'language.searchPlaceholder': 'Skriv språknamn...',
     'nav.newGame': 'NYTT SPEL',
-    'nav.guide': 'GUIDE'
+    'nav.guide': 'GUIDE',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   da: {
     'app.title': 'Nonograms',
@@ -1308,7 +1506,21 @@ const messages = {
     'language.searchLabel': 'Søg efter sprog',
     'language.searchPlaceholder': 'Skriv sprogets navn...',
     'nav.newGame': 'NYT SPIL',
-    'nav.guide': 'VEJLEDNING'
+    'nav.guide': 'VEJLEDNING',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   fi: {
     'app.title': 'Nonograms',
@@ -1363,7 +1575,21 @@ const messages = {
     'language.searchLabel': 'Etsi kieltä',
     'language.searchPlaceholder': 'Kirjoita kielen nimi...',
     'nav.newGame': 'UUSI PELI',
-    'nav.guide': 'OPAS'
+    'nav.guide': 'OPAS',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   no: {
     'app.title': 'Nonograms',
@@ -1418,7 +1644,21 @@ const messages = {
     'language.searchLabel': 'Søk etter språk',
     'language.searchPlaceholder': 'Skriv språknavn...',
     'nav.newGame': 'NYTT SPILL',
-    'nav.guide': 'VEILEDER'
+    'nav.guide': 'VEILEDER',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   cs: {
     'app.title': 'Nonograms',
@@ -1473,7 +1713,21 @@ const messages = {
     'language.searchLabel': 'Hledat jazyk',
     'language.searchPlaceholder': 'Zadejte název jazyka...',
     'nav.newGame': 'NOVÁ HRA',
-    'nav.guide': 'NÁVOD'
+    'nav.guide': 'NÁVOD',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   sk: {
     'app.title': 'Nonograms',
@@ -1528,7 +1782,21 @@ const messages = {
     'language.searchLabel': 'Hľadať jazyk',
     'language.searchPlaceholder': 'Zadajte názov jazyka...',
     'nav.newGame': 'NOVÁ HRA',
-    'nav.guide': 'NÁVOD'
+    'nav.guide': 'NÁVOD',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   hu: {
     'app.title': 'Nonograms',
@@ -1583,7 +1851,21 @@ const messages = {
     'language.searchLabel': 'Nyelv keresése',
     'language.searchPlaceholder': 'Írd be a nyelv nevét...',
     'nav.newGame': 'ÚJ JÁTÉK',
-    'nav.guide': 'ÚTMUTATÓ'
+    'nav.guide': 'ÚTMUTATÓ',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   ro: {
     'app.title': 'Nonograms',
@@ -1638,7 +1920,21 @@ const messages = {
     'language.searchLabel': 'Caută limbă',
     'language.searchPlaceholder': 'Introduceți numele limbii...',
     'nav.newGame': 'JOC NOU',
-    'nav.guide': 'GHID'
+    'nav.guide': 'GHID',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   bg: {
     'app.title': 'Nonograms',
@@ -1693,7 +1989,21 @@ const messages = {
     'language.searchLabel': 'Търсене на език',
     'language.searchPlaceholder': 'Въведете име на език...',
     'nav.newGame': 'НОВА ИГРА',
-    'nav.guide': 'РЪКОВОДСТВО'
+    'nav.guide': 'РЪКОВОДСТВО',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   el: {
     'app.title': 'Nonograms',
@@ -1748,7 +2058,21 @@ const messages = {
     'language.searchLabel': 'Αναζήτηση γλώσσας',
     'language.searchPlaceholder': 'Πληκτρολογήστε όνομα γλώσσας...',
     'nav.newGame': 'ΝΕΟ ΠΑΙΧΝΙΔΙ',
-    'nav.guide': 'ΟΔΗΓΟΣ'
+    'nav.guide': 'ΟΔΗΓΟΣ',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   uk: {
     'app.title': 'Nonograms',
@@ -1803,7 +2127,21 @@ const messages = {
     'language.searchLabel': 'Пошук мови',
     'language.searchPlaceholder': 'Введіть назву мови...',
     'nav.newGame': 'НОВА ГРА',
-    'nav.guide': 'ІНСТРУКЦІЯ'
+    'nav.guide': 'ІНСТРУКЦІЯ',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   be: {
     'app.title': 'Nonograms',
@@ -1858,7 +2196,21 @@ const messages = {
     'language.searchLabel': 'Пошук мовы',
     'language.searchPlaceholder': 'Увядзіце назву мовы...',
     'nav.newGame': 'НОВАЯ ГУЛЬНЯ',
-    'nav.guide': 'КІРАЎНІЦТВА'
+    'nav.guide': 'КІРАЎНІЦТВА',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   sr: {
     'app.title': 'Nonograms',
@@ -1913,7 +2265,21 @@ const messages = {
     'language.searchLabel': 'Претрага језика',
     'language.searchPlaceholder': 'Унесите назив језика...',
     'nav.newGame': 'НОВА ИГРА',
-    'nav.guide': 'ВОДИЧ'
+    'nav.guide': 'ВОДИЧ',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   hr: {
     'app.title': 'Nonograms',
@@ -1968,7 +2334,21 @@ const messages = {
     'language.searchLabel': 'Pretraži jezik',
     'language.searchPlaceholder': 'Unesite naziv jezika...',
     'nav.newGame': 'NOVA IGRA',
-    'nav.guide': 'VODIČ'
+    'nav.guide': 'VODIČ',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   sl: {
     'app.title': 'Nonograms',
@@ -2023,7 +2403,21 @@ const messages = {
     'language.searchLabel': 'Iskanje jezika',
     'language.searchPlaceholder': 'Vnesite ime jezika...',
     'nav.newGame': 'NOVA IGRA',
-    'nav.guide': 'VODNIK'
+    'nav.guide': 'VODNIK',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   lt: {
     'app.title': 'Nonograms',
@@ -2078,7 +2472,21 @@ const messages = {
     'language.searchLabel': 'Ieškoti kalbos',
     'language.searchPlaceholder': 'Įveskite kalbos pavadinimą...',
     'nav.newGame': 'NAUJAS ŽAIDIMAS',
-    'nav.guide': 'VADOVAS'
+    'nav.guide': 'VADOVAS',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   lv: {
     'app.title': 'Nonograms',
@@ -2133,7 +2541,21 @@ const messages = {
     'language.searchLabel': 'Meklēt valodu',
     'language.searchPlaceholder': 'Ierakstiet valodas nosaukumu...',
     'nav.newGame': 'JAUNA SPĒLE',
-    'nav.guide': 'CEĻVEDIS'
+    'nav.guide': 'CEĻVEDIS',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   et: {
     'app.title': 'Nonograms',
@@ -2188,7 +2610,21 @@ const messages = {
     'language.searchLabel': 'Otsi keelt',
     'language.searchPlaceholder': 'Sisesta keele nimi...',
     'nav.newGame': 'UUS MÄNG',
-    'nav.guide': 'JUHEND'
+    'nav.guide': 'JUHEND',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   ga: {
     'app.title': 'Nonograms',
@@ -2243,7 +2679,21 @@ const messages = {
     'language.searchLabel': 'Cuardaigh teanga',
     'language.searchPlaceholder': 'Iontráil ainm teanga...',
     'nav.newGame': 'CLUICHE NUA',
-    'nav.guide': 'TREOIR'
+    'nav.guide': 'TREOIR',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   is: {
     'app.title': 'Nonograms',
@@ -2298,7 +2748,21 @@ const messages = {
     'language.searchLabel': 'Leita að tungumáli',
     'language.searchPlaceholder': 'Sláðu inn heiti tungumáls...',
     'nav.newGame': 'NÝR LEIKUR',
-    'nav.guide': 'LEIÐBEININGAR'
+    'nav.guide': 'LEIÐBEININGAR',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   mt: {
     'app.title': 'Nonograms',
@@ -2353,7 +2817,21 @@ const messages = {
     'language.searchLabel': 'Fittex lingwa',
     'language.searchPlaceholder': 'Daħħal isem il-lingwa...',
     'nav.newGame': 'LOGĦBA ĠDIDA',
-    'nav.guide': 'GWIDA'
+    'nav.guide': 'GWIDA',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   sq: {
     'app.title': 'Nonograms',
@@ -2408,7 +2886,21 @@ const messages = {
     'language.searchLabel': 'Kërko gjuhë',
     'language.searchPlaceholder': 'Shkruani emrin e gjuhës...',
     'nav.newGame': 'LOJË E RE',
-    'nav.guide': 'UDHËZUES'
+    'nav.guide': 'UDHËZUES',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   mk: {
     'app.title': 'Nonograms',
@@ -2463,7 +2955,21 @@ const messages = {
     'language.searchLabel': 'Пребарај јазик',
     'language.searchPlaceholder': 'Внесете име на јазик...',
     'nav.newGame': 'НОВА ИГРА',
-    'nav.guide': 'ВОДИЧ'
+    'nav.guide': 'ВОДИЧ',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   bs: {
     'app.title': 'Nonograms',
@@ -2518,7 +3024,21 @@ const messages = {
     'language.searchLabel': 'Pretraži jezik',
     'language.searchPlaceholder': 'Unesite naziv jezika...',
     'nav.newGame': 'NOVA IGRA',
-    'nav.guide': 'VODIČ'
+    'nav.guide': 'VODIČ',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   tr: {
     'app.title': 'Nonograms',
@@ -2573,7 +3093,21 @@ const messages = {
     'language.searchLabel': 'Dil ara',
     'language.searchPlaceholder': 'Dil adını yazın...',
     'nav.newGame': 'YENİ OYUN',
-    'nav.guide': 'REHBER'
+    'nav.guide': 'REHBER',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   ca: {
     'app.title': 'Nonograms',
@@ -2628,7 +3162,21 @@ const messages = {
     'language.searchLabel': 'Cerca idioma',
     'language.searchPlaceholder': 'Escriu el nom de l’idioma...',
     'nav.newGame': 'NOVA PARTIDA',
-    'nav.guide': 'GUIA'
+    'nav.guide': 'GUIA',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   gl: {
     'app.title': 'Nonograms',
@@ -2683,7 +3231,21 @@ const messages = {
     'language.searchLabel': 'Buscar idioma',
     'language.searchPlaceholder': 'Escribe o nome do idioma...',
     'nav.newGame': 'NOVO XOGO',
-    'nav.guide': 'GUÍA'
+    'nav.guide': 'GUÍA',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   cy: {
     'app.title': 'Nonograms',
@@ -2738,7 +3300,21 @@ const messages = {
     'language.searchLabel': 'Chwilio am iaith',
     'language.searchPlaceholder': 'Teipiwch enw iaith...',
     'nav.newGame': 'GÊM NEWYDD',
-    'nav.guide': 'CANLLAW'
+    'nav.guide': 'CANLLAW',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   gd: {
     'app.title': 'Nonograms',
@@ -2793,7 +3369,21 @@ const messages = {
     'language.searchLabel': 'Lorg cànan',
     'language.searchPlaceholder': 'Cuir a-steach ainm cànain...',
     'nav.newGame': 'GEAMA ÙR',
-    'nav.guide': 'STIÙIREADH'
+    'nav.guide': 'STIÙIREADH',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   eu: {
     'app.title': 'Nonograms',
@@ -2848,7 +3438,21 @@ const messages = {
     'language.searchLabel': 'Bilatu hizkuntza',
     'language.searchPlaceholder': 'Idatzi hizkuntzaren izena...',
     'nav.newGame': 'JOKO BERRIA',
-    'nav.guide': 'GIDA'
+    'nav.guide': 'GIDA',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   ja: {
     'app.title': 'ノノグラム',
@@ -2903,7 +3507,21 @@ const messages = {
     'language.searchLabel': '言語を検索',
     'language.searchPlaceholder': '言語名を入力...',
     'nav.newGame': '新しいゲーム',
-    'nav.guide': 'ガイド'
+    'nav.guide': 'ガイド',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   ko: {
     'app.title': '노노그램',
@@ -2958,7 +3576,21 @@ const messages = {
     'language.searchLabel': '언어 검색',
     'language.searchPlaceholder': '언어 이름 입력...',
     'nav.newGame': '새 게임',
-    'nav.guide': '가이드'
+    'nav.guide': '가이드',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   id: {
     'app.title': 'Nonograms',
@@ -3013,7 +3645,21 @@ const messages = {
     'language.searchLabel': 'Cari bahasa',
     'language.searchPlaceholder': 'Ketik nama bahasa...',
     'nav.newGame': 'PERMAINAN BARU',
-    'nav.guide': 'PANDUAN'
+    'nav.guide': 'PANDUAN',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   vi: {
     'app.title': 'Nonograms',
@@ -3068,7 +3714,21 @@ const messages = {
     'language.searchLabel': 'Tìm ngôn ngữ',
     'language.searchPlaceholder': 'Nhập tên ngôn ngữ...',
     'nav.newGame': 'TRÒ CHƠI MỚI',
-    'nav.guide': 'HƯỚNG DẪN'
+    'nav.guide': 'HƯỚNG DẪN',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   th: {
     'app.title': 'Nonograms',
@@ -3123,7 +3783,21 @@ const messages = {
     'language.searchLabel': 'ค้นหาภาษา',
     'language.searchPlaceholder': 'พิมพ์ชื่อภาษา...',
     'nav.newGame': 'เกมใหม่',
-    'nav.guide': 'คู่มือ'
+    'nav.guide': 'คู่มือ',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   ms: {
     'app.title': 'Nonograms',
@@ -3178,7 +3852,21 @@ const messages = {
     'language.searchLabel': 'Cari bahasa',
     'language.searchPlaceholder': 'Taip nama bahasa...',
     'nav.newGame': 'PERMAINAN BARU',
-    'nav.guide': 'PANDUAN'
+    'nav.guide': 'PANDUAN',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   fa: {
     'app.title': 'Nonograms',
@@ -3233,7 +3921,21 @@ const messages = {
     'language.searchLabel': 'جستجوی زبان',
     'language.searchPlaceholder': 'نام زبان را بنویسید...',
     'nav.newGame': 'بازی جدید',
-    'nav.guide': 'راهنما'
+    'nav.guide': 'راهنما',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   he: {
     'app.title': 'Nonograms',
@@ -3288,7 +3990,21 @@ const messages = {
     'language.searchLabel': 'חפש שפה',
     'language.searchPlaceholder': 'הקלד שם שפה...',
     'nav.newGame': 'משחק חדש',
-    'nav.guide': 'מדריך'
+    'nav.guide': 'מדריך',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   az: {
     'app.title': 'Nonograms',
@@ -3343,7 +4059,21 @@ const messages = {
     'language.searchLabel': 'Dili axtar',
     'language.searchPlaceholder': 'Dil adını yazın...',
     'nav.newGame': 'YENİ OYUN',
-    'nav.guide': 'BƏLƏDÇİ'
+    'nav.guide': 'BƏLƏDÇİ',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   hy: {
     'app.title': 'Nonograms',
@@ -3398,7 +4128,21 @@ const messages = {
     'language.searchLabel': 'Փնտրել լեզուն',
     'language.searchPlaceholder': 'Գրեք լեզվի անունը...',
     'nav.newGame': 'ՆՈՐ ԽԱՂ',
-    'nav.guide': 'ՈՒՂԵՑՈՒՅՑ'
+    'nav.guide': 'ՈՒՂԵՑՈՒՅՑ',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   uz: {
     'app.title': 'Nonograms',
@@ -3453,7 +4197,21 @@ const messages = {
     'language.searchLabel': 'Tilni qidirish',
     'language.searchPlaceholder': 'Til nomini yozing...',
     'nav.newGame': 'YANGI O\'YIN',
-    'nav.guide': 'QO\'LLANMA'
+    'nav.guide': 'QO\'LLANMA',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   kk: {
     'app.title': 'Nonograms',
@@ -3508,7 +4266,21 @@ const messages = {
     'language.searchLabel': 'Tildi izdeu',
     'language.searchPlaceholder': 'Til atauyn jaz...',
     'nav.newGame': 'ЖАҢА ОЙЫН',
-    'nav.guide': 'НҰСҚАУЛЫҚ'
+    'nav.guide': 'НҰСҚАУЛЫҚ',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   gu: {
     'app.title': 'Nonograms',
@@ -3563,7 +4335,21 @@ const messages = {
     'language.searchLabel': 'ભાષા શોધો',
     'language.searchPlaceholder': 'ભાષાનું નામ લખો...',
     'nav.newGame': 'નવી રમત',
-    'nav.guide': 'માર્ગદર્શિકા'
+    'nav.guide': 'માર્ગદર્શિકા',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   kn: {
     'app.title': 'Nonograms',
@@ -3618,7 +4404,21 @@ const messages = {
     'language.searchLabel': 'ಭಾಷೆ ಹುಡುಕಿ',
     'language.searchPlaceholder': 'ಭಾಷೆಯ ಹೆಸರನ್ನು ಟೈಪ್ ಮಾಡಿ...',
     'nav.newGame': 'ಹೊಸ ಆಟ',
-    'nav.guide': 'ಮಾರ್ಗದರ್ಶಿ'
+    'nav.guide': 'ಮಾರ್ಗದರ್ಶಿ',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   mr: {
     'app.title': 'Nonograms',
@@ -3673,7 +4473,21 @@ const messages = {
     'language.searchLabel': 'भाषा शोधा',
     'language.searchPlaceholder': 'भाषेचे नाव लिहा...',
     'nav.newGame': 'नवीन खेळ',
-    'nav.guide': 'मार्गदर्शक'
+    'nav.guide': 'मार्गदर्शक',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   pa: {
     'app.title': 'Nonograms',
@@ -3728,7 +4542,21 @@ const messages = {
     'language.searchLabel': 'ਭਾਸ਼ਾ ਖੋਜੋ',
     'language.searchPlaceholder': 'ਭਾਸ਼ਾ ਦਾ ਨਾਮ ਲਿਖੋ...',
     'nav.newGame': 'ਨਵੀਂ ਖੇਡ',
-    'nav.guide': 'ਗਾਈਡ'
+    'nav.guide': 'ਗਾਈਡ',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   ta: {
     'app.title': 'Nonograms',
@@ -3783,7 +4611,21 @@ const messages = {
     'language.searchLabel': 'மொழியைத் தேடு',
     'language.searchPlaceholder': 'மொழி பெயரை உள்ளிடவும்...',
     'nav.newGame': 'புதிய விளையாட்டு',
-    'nav.guide': 'வழிகாட்டி'
+    'nav.guide': 'வழிகாட்டி',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   te: {
     'app.title': 'Nonograms',
@@ -3838,7 +4680,21 @@ const messages = {
     'language.searchLabel': 'భాషను వెతకండి',
     'language.searchPlaceholder': 'భాష పేరు టైప్ చేయండి...',
     'nav.newGame': 'కొత్త ఆట',
-    'nav.guide': 'గైడ్'
+    'nav.guide': 'గైడ్',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   ne: {
     'app.title': 'Nonograms',
@@ -3893,7 +4749,21 @@ const messages = {
     'language.searchLabel': 'भाषा खोज्नुहोस्',
     'language.searchPlaceholder': 'भाषाको नाम लेख्नुहोस्...',
     'nav.newGame': 'नयाँ खेल',
-    'nav.guide': 'गाइड'
+    'nav.guide': 'गाइड',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   my: {
     'app.title': 'Nonograms',
@@ -3948,7 +4818,21 @@ const messages = {
     'language.searchLabel': 'ဘာသာစကားရှာပါ',
     'language.searchPlaceholder': 'ဘာသာစကားအမည်ရိုက်ထည့်ပါ...',
     'nav.newGame': 'ဂိမ်းအသစ်',
-    'nav.guide': 'လမ်းညွှန်'
+    'nav.guide': 'လမ်းညွှန်',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   km: {
     'app.title': 'Nonograms',
@@ -4003,7 +4887,21 @@ const messages = {
     'language.searchLabel': 'ស្វែងរកភាសា',
     'language.searchPlaceholder': 'វាយឈ្មោះភាសា...',
     'nav.newGame': 'ល្បែងថ្មី',
-    'nav.guide': 'ការណែនាំ'
+    'nav.guide': 'ការណែនាំ',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   lo: {
     'app.title': 'Nonograms',
@@ -4058,7 +4956,21 @@ const messages = {
     'language.searchLabel': 'ຄົ້ນຫາພາສາ',
     'language.searchPlaceholder': 'ພິມຊື່ພາສາ...',
     'nav.newGame': 'ເກມໃໝ່',
-    'nav.guide': 'ຄຳແນະນຳ'
+    'nav.guide': 'ຄຳແນະນຳ',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   mn: {
     'app.title': 'Nonograms',
@@ -4113,7 +5025,21 @@ const messages = {
     'language.searchLabel': 'Хэл хайх',
     'language.searchPlaceholder': 'Хэлний нэрийг бичнэ үү...',
     'nav.newGame': 'ШИНЭ ТОГЛООМ',
-    'nav.guide': 'ЗААВАР'
+    'nav.guide': 'ЗААВАР',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   bo: {
     'app.title': 'Nonograms',
@@ -4168,7 +5094,21 @@ const messages = {
     'language.searchLabel': 'སྐད་ཡིག་འཚོལ',
     'language.searchPlaceholder': 'སྐད་ཡིག་གི་མིང་འབྲི...',
     'nav.newGame': 'རྩེད་མོ་གསར་པ།',
-    'nav.guide': 'ལམ་སྟོན།'
+    'nav.guide': 'ལམ་སྟོན།',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   af: {
     'app.title': 'Nonograms',
@@ -4223,7 +5163,21 @@ const messages = {
     'language.searchLabel': 'Soek taal',
     'language.searchPlaceholder': 'Tik taalnaam...',
     'nav.newGame': 'NUWE SPEL',
-    'nav.guide': 'GIDS'
+    'nav.guide': 'GIDS',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   sw: {
     'app.title': 'Nonograms',
@@ -4278,7 +5232,21 @@ const messages = {
     'language.searchLabel': 'Tafuta lugha',
     'language.searchPlaceholder': 'Andika jina la lugha...',
     'nav.newGame': 'MCHEZO MPYA',
-    'nav.guide': 'MUONGOZO'
+    'nav.guide': 'MUONGOZO',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   am: {
     'app.title': 'Nonograms',
@@ -4333,7 +5301,21 @@ const messages = {
     'language.searchLabel': 'ቋንቋ ይፈልጉ',
     'language.searchPlaceholder': 'የቋንቋ ስም ይተይቡ...',
     'nav.newGame': 'አዲስ ጨዋታ',
-    'nav.guide': 'መመሪያ'
+    'nav.guide': 'መመሪያ',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   yo: {
     'app.title': 'Nonograms',
@@ -4388,7 +5370,21 @@ const messages = {
     'language.searchLabel': 'Wá èdè',
     'language.searchPlaceholder': 'Tẹ orukọ èdè...',
     'nav.newGame': 'ERE TITUN',
-    'nav.guide': 'ITỌSỌNA'
+    'nav.guide': 'ITỌSỌNA',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   ig: {
     'app.title': 'Nonograms',
@@ -4443,7 +5439,21 @@ const messages = {
     'language.searchLabel': 'Chọọ asụsụ',
     'language.searchPlaceholder': 'Pịnye aha asụsụ...',
     'nav.newGame': 'EGWUREGWU OHUU',
-    'nav.guide': 'NDUZI'
+    'nav.guide': 'NDUZI',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   so: {
     'app.title': 'Nonograms',
@@ -4498,7 +5508,21 @@ const messages = {
     'language.searchLabel': 'Raadi luqad',
     'language.searchPlaceholder': 'Qor magaca luqadda...',
     'nav.newGame': 'CIYAAR CUSUB',
-    'nav.guide': 'HAGAHA'
+    'nav.guide': 'HAGAHA',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   rw: {
     'app.title': 'Nonograms',
@@ -4553,7 +5577,21 @@ const messages = {
     'language.searchLabel': 'Shakisha ururimi',
     'language.searchPlaceholder': 'Andika izina ry\'ururimi...',
     'nav.newGame': 'UMUKINO MUSHYA',
-    'nav.guide': 'IYOBORA'
+    'nav.guide': 'IYOBORA',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   rn: {
     'app.title': 'Nonograms',
@@ -4608,7 +5646,21 @@ const messages = {
     'language.searchLabel': 'Rondera ururimi',
     'language.searchPlaceholder': 'Andika izina ry\'ururimi...',
     'nav.newGame': 'UMUKINO MUSHYA',
-    'nav.guide': 'IYOBORA'
+    'nav.guide': 'IYOBORA',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   wo: {
     'app.title': 'Nonograms',
@@ -4663,7 +5715,21 @@ const messages = {
     'language.searchLabel': 'Seet làkk',
     'language.searchPlaceholder': 'Bind turu làkk...',
     'nav.newGame': 'JEU BU BESS',
-    'nav.guide': 'GINDIT'
+    'nav.guide': 'GINDIT',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   om: {
     'app.title': 'Nonograms',
@@ -4718,7 +5784,21 @@ const messages = {
     'language.searchLabel': 'Afaan barbaadi',
     'language.searchPlaceholder': 'Maqaa afaanii barreessi...',
     'nav.newGame': 'TAPHA HAARAA',
-    'nav.guide': 'QAJEELE'
+    'nav.guide': 'QAJEELE',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   ti: {
     'app.title': 'Nonograms',
@@ -4773,7 +5853,21 @@ const messages = {
     'language.searchLabel': 'ቋንቋ ድለ',
     'language.searchPlaceholder': 'ስም ቋንቋ ጽሓፍ...',
     'nav.newGame': 'ሓatsush ጸወታ',
-    'nav.guide': 'መምርሒ'
+    'nav.guide': 'መምርሒ',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   ht: {
     'app.title': 'Nonograms',
@@ -4828,7 +5922,21 @@ const messages = {
     'language.searchLabel': 'Chèche lang',
     'language.searchPlaceholder': 'Ekri non lang lan...',
     'nav.newGame': 'NOUVO JWÈT',
-    'nav.guide': 'GID'
+    'nav.guide': 'GID',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   ceb: {
     'app.title': 'Nonograms',
@@ -4883,7 +5991,21 @@ const messages = {
     'language.searchLabel': 'Pangitaa ang pinulongan',
     'language.searchPlaceholder': 'Isulat ang ngalan sa pinulongan...',
     'nav.newGame': 'BAG-ONG DULA',
-    'nav.guide': 'GIYA'
+    'nav.guide': 'GIYA',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   ilo: {
     'app.title': 'Nonograms',
@@ -4938,7 +6060,21 @@ const messages = {
     'language.searchLabel': 'Biroken ti pagsasao',
     'language.searchPlaceholder': 'I-type ti nagan ti pagsasao...',
     'nav.newGame': 'BARO A AY-AYAM',
-    'nav.guide': 'GIYA'
+    'nav.guide': 'GIYA',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   jv: {
     'app.title': 'Nonograms',
@@ -4993,7 +6129,21 @@ const messages = {
     'language.searchLabel': 'Goleki basa',
     'language.searchPlaceholder': 'Ketik jeneng basa...',
     'nav.newGame': 'PERMAINAN ANYAR',
-    'nav.guide': 'PANDUAN'
+    'nav.guide': 'PANDUAN',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   ku: {
     'app.title': 'Nonograms',
@@ -5048,7 +6198,21 @@ const messages = {
     'language.searchLabel': 'Li ziman bigere',
     'language.searchPlaceholder': 'Navê ziman binivîse...',
     'nav.newGame': 'LÎSTIKA NÛ',
-    'nav.guide': 'RÊBER'
+    'nav.guide': 'RÊBER',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   ckb: {
     'app.title': 'Nonograms',
@@ -5103,7 +6267,21 @@ const messages = {
     'language.searchLabel': 'گەڕان بۆ زمان',
     'language.searchPlaceholder': 'ناوی زمان بنووسە...',
     'nav.newGame': 'یاری نوێ',
-    'nav.guide': 'ڕێنمایی'
+    'nav.guide': 'ڕێنمایی',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   },
   ps: {
     'app.title': 'Nonograms',
@@ -5158,7 +6336,21 @@ const messages = {
     'language.searchLabel': 'ژبه وپلټئ',
     'language.searchPlaceholder': 'د ژبې نوم ولیکئ...',
     'nav.newGame': 'نوې لوبه',
-    'nav.guide': 'لارښود'
+    'nav.guide': 'لارښود',
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation',
   }
 };