From dad45245582514fc89bf6cbb5bd7622026be2c51 Mon Sep 17 00:00:00 2001
From: govind-maheshwari2
 <132160327+govind-maheshwari2@users.noreply.github.com>
Date: Tue, 3 Dec 2024 04:28:34 -0800
Subject: [PATCH] fix queen side castling issue

Unable to provide queen side castling for `r1bq1rk1/pp2npbp/2np2p1/2p5/4P2P/2NPB1P1/PPP1QPB1/R3K2R w KQq - 0 1` FEN.
---
 lib/src/game/game.dart | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/src/game/game.dart b/lib/src/game/game.dart
index b6d49b0..ff6ae70 100644
--- a/lib/src/game/game.dart
+++ b/lib/src/game/game.dart
@@ -468,7 +468,7 @@ class Game {
               continue;
             } // king starting on target
 
-            if (j != numMidSqs && board[midSq].isNotEmpty) {
+            if (j != numMidSqs && from != midSq && board[midSq].isNotEmpty) {
               // squares between to and from must be empty
               valid = false;
               break;