From 77d46ff61c3e33f7e9c1ef1f1b48315f23b04e80 Mon Sep 17 00:00:00 2001
From: Daniel Monroe <github.com@danielmonroe.net>
Date: Sat, 31 Jan 2026 21:32:03 -0500
Subject: [PATCH] Simplify probCutDepth term

Passed STC
LLR: 2.93 (-2.94,2.94) <-1.75,0.25>
Total: 139392 W: 36003 L: 35897 D: 67492
Ptnml(0-2): 451, 16383, 35911, 16511, 440
https://tests.stockfishchess.org/tests/view/697ebb4d5f56030af97b5aa5

Passed LTC
LLR: 2.97 (-2.94,2.94) <-1.75,0.25>
Total: 266934 W: 67822 L: 67851 D: 131261
Ptnml(0-2): 175, 29579, 73955, 29616, 142
https://tests.stockfishchess.org/tests/view/6980e5a26362aee5c8a55398

closes https://github.com/official-stockfish/Stockfish/pull/6607

Bench: 2515956
---
 src/search.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/search.cpp b/src/search.cpp
index 364ab2f6b..cc3c06d7f 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -943,7 +943,7 @@ Value Search::Worker::search(
         assert(probCutBeta < VALUE_INFINITE && probCutBeta > beta);
 
         MovePicker mp(pos, ttData.move, probCutBeta - ss->staticEval, &captureHistory);
-        Depth      probCutDepth = std::clamp(depth - 5 - (ss->staticEval - beta) / 315, 0, depth);
+        Depth      probCutDepth = depth - 5;
 
         while ((move = mp.next_move()) != Move::none())
         {