From 8281130c9a5b96ecf7e4c447ca32253d58e8387b Mon Sep 17 00:00:00 2001
From: Sebastian Lague <sebastlague@gmail.com>
Date: Sat, 22 Jul 2023 20:33:46 +0200
Subject: [PATCH] Fix fifty move counter not updating correctly during search

---
 Chess-Challenge/src/Framework/Chess/Board/Board.cs | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/Chess-Challenge/src/Framework/Chess/Board/Board.cs b/Chess-Challenge/src/Framework/Chess/Board/Board.cs
index fa683f7..3d1daef 100644
--- a/Chess-Challenge/src/Framework/Chess/Board/Board.cs
+++ b/Chess-Challenge/src/Framework/Chess/Board/Board.cs
@@ -266,9 +266,12 @@ namespace ChessChallenge.Chess
             UpdateSliderBitboards();
 
             // Pawn moves and captures reset the fifty move counter and clear 3-fold repetition history
-            if (!inSearch && (movedPieceType == PieceHelper.Pawn || capturedPieceType != PieceHelper.None))
+            if (movedPieceType == PieceHelper.Pawn || capturedPieceType != PieceHelper.None)
             {
-                RepetitionPositionHistory.Clear();
+                if (!inSearch)
+                {
+                    RepetitionPositionHistory.Clear();
+                }
                 newFiftyMoveCounter = 0;
             }