From 955c927265c36396d6519a57b3d1e81a5c700420 Mon Sep 17 00:00:00 2001
From: Pieter te Brake <pieterteb@gmail.com>
Date: Mon, 8 Dec 2025 22:46:07 +0100
Subject: [PATCH] Removed redundant board updates

Contrary to what the comment says, `remove_piece` does in fact set the
relevant `board` elements to `NO_PIECE`.

closes https://github.com/official-stockfish/Stockfish/pull/6471

No functional change
---
 src/position.cpp | 2 --
 1 file changed, 2 deletions(-)

diff --git a/src/position.cpp b/src/position.cpp
index cd778011f..a4286b86a 100644
--- a/src/position.cpp
+++ b/src/position.cpp
@@ -1225,8 +1225,6 @@ void Position::do_castling(Color               us,
     // Remove both pieces first since squares could overlap in Chess960
     remove_piece(Do ? from : to, dts);
     remove_piece(Do ? rfrom : rto, dts);
-    board[Do ? from : to] = board[Do ? rfrom : rto] =
-      NO_PIECE;  // remove_piece does not do this for us
     put_piece(make_piece(us, KING), Do ? to : from, dts);
     put_piece(make_piece(us, ROOK), Do ? rto : rfrom, dts);
 }