From 00b1540e01465ca39184fd33f28164c0803a34db Mon Sep 17 00:00:00 2001
From: Shawn Xu <xu107288696@gmail.com>
Date: Sat, 17 May 2025 18:01:25 +0200
Subject: [PATCH] Always Decrease Reduction on TTMove
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Passed VVLTC w/ LTC Bounds:
LLR: 2.94 (-2.94,2.94) <0.50,2.50>
Total: 57792 W: 15005 L: 14676 D: 28111
Ptnml(0-2): 2, 5241, 18082, 5568, 3
https://tests.stockfishchess.org/tests/view/682a0e3c6ec7634154f9a07e

Passed VVLTC w/ STC Bounds:
LLR: 2.94 (-2.94,2.94) <0.00,2.00>
Total: 372298 W: 96342 L: 95655 D: 180301
Ptnml(0-2): 37, 34598, 116181, 35307, 26
https://tests.stockfishchess.org/tests/view/682a45b16ec7634154f9a3b3

STC Elo Estimate:
Elo: 0.15 ± 1.4 (95%) LOS: 58.3%
Total: 59612 W: 15414 L: 15388 D: 28810
Ptnml(0-2): 166, 6959, 15527, 6991, 163
nElo: 0.30 ± 2.8 (95%) PairsRatio: 1.00
https://tests.stockfishchess.org/tests/view/68335d276ec7634154f9c25c

closes https://github.com/official-stockfish/Stockfish/pull/6095

bench 2634355
---
 src/search.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/search.cpp b/src/search.cpp
index d7abef3d..5b16b269 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -1223,7 +1223,7 @@ moves_loop:  // When in check, search starts here
             r += (ss->quietMoveStreak - 1) * 50;
 
         // For first picked move (ttMove) reduce reduction
-        else if (move == ttData.move)
+        if (move == ttData.move)
             r -= 2006;
 
         if (capture)