diff --git a/src/components/WinModal.vue b/src/components/WinModal.vue
index 655957e..91cbf60 100644
--- a/src/components/WinModal.vue
+++ b/src/components/WinModal.vue
@@ -223,7 +223,7 @@ const shareTo = async (target) => {
 };
 
 onMounted(() => {
-  if (fireworksRef.value) {
+  if (fireworksRef.value && !store.hasUsedGuide) {
     fireworksInstance = new Fireworks(fireworksRef.value, {
       autoresize: true,
       opacity: 0.6,
@@ -242,7 +242,9 @@ onMounted(() => {
     });
     fireworksInstance.start();
   }
-  playFanfare();
+  if (!store.hasUsedGuide) {
+    playFanfare();
+  }
   triggerVibration();
   window.addEventListener('keydown', handleKeyDown);
 });
@@ -276,7 +278,7 @@ onUnmounted(() => {
         </div>
       </div>
 
-      <div class="share">
+      <div class="share" v-if="!store.hasUsedGuide">
         <div class="share-title">{{ t('win.shareTitle') }}</div>
         <div class="share-buttons">
           <button class="btn-neon secondary share-btn" :disabled="shareInProgress" :aria-label="t('win.shareX')" @click="shareTo('x')">
diff --git a/src/composables/useSolver.js b/src/composables/useSolver.js
index dd17c89..4ee5d94 100644
--- a/src/composables/useSolver.js
+++ b/src/composables/useSolver.js
@@ -24,6 +24,7 @@ export function useSolver() {
             return;
         }
         if (isProcessing.value) return;
+        store.markGuideUsed();
         ensureWorker();
         isProcessing.value = true;
 
diff --git a/src/stores/puzzle.js b/src/stores/puzzle.js
index 88861c9..e9b343c 100644
--- a/src/stores/puzzle.js
+++ b/src/stores/puzzle.js
@@ -63,6 +63,7 @@ export const usePuzzleStore = defineStore('puzzle', () => {
   const solution = ref([]);
   const playerGrid = ref([]); // 0: empty, 1: filled, 2: cross
   const isGameWon = ref(false);
+  const hasUsedGuide = ref(false);
   const size = ref(5);
   const startTime = ref(null);
   const elapsedTime = ref(0);
@@ -116,6 +117,7 @@ export const usePuzzleStore = defineStore('puzzle', () => {
     
     resetGrid();
     isGameWon.value = false;
+    hasUsedGuide.value = false;
     elapsedTime.value = 0;
     startTimer();
   }
@@ -130,6 +132,7 @@ export const usePuzzleStore = defineStore('puzzle', () => {
     
     resetGrid();
     isGameWon.value = false;
+    hasUsedGuide.value = false;
     elapsedTime.value = 0;
     startTimer();
   }
@@ -238,6 +241,7 @@ export const usePuzzleStore = defineStore('puzzle', () => {
         solution: solution.value,
         playerGrid: playerGrid.value,
         isGameWon: isGameWon.value,
+        hasUsedGuide: hasUsedGuide.value,
         elapsedTime: elapsedTime.value,
         moves: moves.value,
         history: history.value
@@ -316,6 +320,7 @@ export const usePuzzleStore = defineStore('puzzle', () => {
     if (currentLevelId.value === 'custom') {
         resetGrid();
         isGameWon.value = false;
+        hasUsedGuide.value = false;
         elapsedTime.value = 0;
         startTimer();
         saveState();
@@ -324,6 +329,12 @@ export const usePuzzleStore = defineStore('puzzle', () => {
     }
   }
 
+  function markGuideUsed() {
+    if (isGameWon.value) return;
+    hasUsedGuide.value = true;
+    saveState();
+  }
+
   function closeWinModal() {
     if (!isGameWon.value) return;
     isGameWon.value = false;
@@ -347,7 +358,9 @@ export const usePuzzleStore = defineStore('puzzle', () => {
     loadState, // expose loadState
     moves,
     undo,
-    closeWinModal
+    closeWinModal,
+    hasUsedGuide,
+    markGuideUsed
   };
 
 });