From 93523a6b78200a6c91dc5898c92f32354bea728f Mon Sep 17 00:00:00 2001
From: Grzegorz Kucmierz <gkucmierz@gmail.com>
Date: Wed, 11 Feb 2026 01:01:53 +0100
Subject: [PATCH] fix: enforce gap between blocks in solver logic

---
 src/workers/solverWorker.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/workers/solverWorker.js b/src/workers/solverWorker.js
index c2080b9..170d4c8 100644
--- a/src/workers/solverWorker.js
+++ b/src/workers/solverWorker.js
@@ -115,7 +115,7 @@ const solveLineLogic = (lineState, hints) => {
       return result;
     }
     const len = hints[hintCount - 1];
-    const maxStart = pos - len;
+    const maxStart = pos - len - 1;
     for (let start = maxStart; start >= 0; start--) {
       if (hasCross(start, start + len)) continue;
       if (start + len < pos && lineState[start + len] === 1) continue;