From 6edc29d720b43383a04bd2208e9666a6f3173a64 Mon Sep 17 00:00:00 2001
From: bmc4 <bmc4@cin.ufpe.br>
Date: Thu, 9 Jun 2022 10:37:24 -0300
Subject: [PATCH] Simplify away condition in ttSave in probCut

Remove condition for tte->save in probCut so it always saves on probCut cutoff.

STC:
LLR: 2.95 (-2.94,2.94) <-2.25,0.25>
Total: 47848 W: 12921 L: 12782 D: 22145
Ptnml(0-2): 207, 5340, 12715, 5431, 231
https://tests.stockfishchess.org/tests/view/62a1f7c87bd8e641e44436f7

LTC:
LLR: 2.97 (-2.94,2.94) <-2.25,0.25>
Total: 132736 W: 35895 L: 35881 D: 60960
Ptnml(0-2): 109, 13384, 39360, 13414, 101
https://tests.stockfishchess.org/tests/view/62a2421a7bd8e641e444434f

closes https://github.com/official-stockfish/Stockfish/pull/4069

bench: 5845802
---
 src/search.cpp | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/src/search.cpp b/src/search.cpp
index 1ab71a56..466c9ec1 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -894,12 +894,8 @@ namespace {
 
                 if (value >= probCutBeta)
                 {
-                    // if transposition table doesn't have equal or more deep info write probCut data into it
-                    if (!(   ss->ttHit
-                          && tte->depth() >= depth - 3
-                          && ttValue != VALUE_NONE))
-                        tte->save(posKey, value_to_tt(value, ss->ply), ttPv,
-                                  BOUND_LOWER, depth - 3, move, ss->staticEval);
+                    // Save ProbCut data into transposition table
+                    tte->save(posKey, value_to_tt(value, ss->ply), ttPv, BOUND_LOWER, depth - 3, move, ss->staticEval);
                     return value;
                 }
             }