From f129bf0de94f2c5a7ee19e697612a7e83ccd28ff Mon Sep 17 00:00:00 2001
From: Michael Chaly <Vizvezdenec@gmail.com>
Date: Sun, 17 Nov 2024 09:19:06 +0300
Subject: [PATCH] Tweak statscore for captures

Followup of a recent patch that separated statscore for captures and non-captures.
Lower value that we subtract from statscore if a move is a capture.

Passed STC:
https://tests.stockfishchess.org/tests/view/67385b6786d5ee47d953eeba
LLR: 2.93 (-2.94,2.94) <0.00,2.00>
Total: 50592 W: 13223 L: 12888 D: 24481
Ptnml(0-2): 154, 5853, 12931, 6220, 138

Passed LTC:
https://tests.stockfishchess.org/tests/view/6739056e86d5ee47d953ef3f
LLR: 2.95 (-2.94,2.94) <0.50,2.50>
Total: 23598 W: 6155 L: 5862 D: 11581
Ptnml(0-2): 16, 2466, 6543, 2757, 17

closes https://github.com/official-stockfish/Stockfish/pull/5682

Bench: 771180
---
 src/search.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/search.cpp b/src/search.cpp
index 94b20c85..50b31d2a 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -1184,7 +1184,7 @@ moves_loop:  // When in check, search starts here
         if (capture)
             ss->statScore =
               thisThread->captureHistory[movedPiece][move.to_sq()][type_of(pos.captured_piece())]
-              - 13000;
+              - 11000;
         else
             ss->statScore = 2 * thisThread->mainHistory[us][move.from_to()]
                           + (*contHist[0])[movedPiece][move.to_sq()]