From 2ce47573b4d3664dca4cbc4354c8c600540d16ad Mon Sep 17 00:00:00 2001
From: FauziAkram <fauzi.dabat@hotmail.com>
Date: Wed, 16 Oct 2024 19:40:49 +0300
Subject: [PATCH] Remove -stat_malus(newDepth)

Passed STC:
LLR: 2.97 (-2.94,2.94) <-1.75,0.25>
Total: 92544 W: 23940 L: 23778 D: 44826
Ptnml(0-2): 286, 10936, 23638, 11154, 258
https://tests.stockfishchess.org/tests/view/670c3d6986d5ee47d953c30b

Passed LTC:
LLR: 2.95 (-2.94,2.94) <-1.75,0.25>
Total: 43164 W: 10986 L: 10786 D: 21392
Ptnml(0-2): 27, 4713, 11905, 4907, 30
https://tests.stockfishchess.org/tests/view/670eda3d86d5ee47d953c51d

closes https://github.com/official-stockfish/Stockfish/pull/5639

Bench: 1281912
---
 src/search.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/search.cpp b/src/search.cpp
index c398b7d2..c78acb6c 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -1210,7 +1210,7 @@ moves_loop:  // When in check, search starts here
                     value = -search<NonPV>(pos, ss + 1, -(alpha + 1), -alpha, newDepth, !cutNode);
 
                 // Post LMR continuation history updates (~1 Elo)
-                int bonus = value >= beta ? 3 * stat_bonus(newDepth) : -stat_malus(newDepth);
+                int bonus = 2 * (value >= beta) * stat_bonus(newDepth);
                 update_continuation_histories(ss, movedPiece, move.to_sq(), bonus);
             }
         }