From d6bdcec52c33a67970721c4443136b42265a6148 Mon Sep 17 00:00:00 2001
From: gab8192 <gabrilomba57@gmail.com>
Date: Wed, 3 Apr 2024 23:41:24 +0200
Subject: [PATCH] Remove an useless assignment

The assignment (ss + 1)->excludedMove = Move::none() can be simplified away because when that line is reached, (ss + 1)->excludedMove is always already none. The only moment stack[x]->excludedMove is modified, is during singular search, but it is reset to none right after the singular search is finished.

closes https://github.com/official-stockfish/Stockfish/pull/5153

No functional change
---
 src/search.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/search.cpp b/src/search.cpp
index a131c958..3d84eb36 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -585,7 +585,7 @@ Value Search::Worker::search(
 
     assert(0 <= ss->ply && ss->ply < MAX_PLY);
 
-    (ss + 1)->excludedMove = bestMove = Move::none();
+    bestMove = Move::none();
     (ss + 2)->killers[0] = (ss + 2)->killers[1] = Move::none();
     (ss + 2)->cutoffCnt                         = 0;
     ss->multipleExtensions                      = (ss - 1)->multipleExtensions;