From d11217d26bb7c1db886645afa2ab80fe8cdb99de Mon Sep 17 00:00:00 2001
From: dhb <1084714805@qq.com>
Date: Fri, 26 Jul 2024 23:40:31 +0800
Subject: [PATCH] ablation: no decrease reduction if position is or has been on
 the PV

test r15
---
 Rapfi/search/ab/search.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Rapfi/search/ab/search.cpp b/Rapfi/search/ab/search.cpp
index 47470f4..8c0b467 100644
--- a/Rapfi/search/ab/search.cpp
+++ b/Rapfi/search/ab/search.cpp
@@ -1122,8 +1122,8 @@ Value search(Board &board, SearchStack *ss, Value alpha, Value beta, Depth depth
             r += complexity * complexityReduction<Rule>(trivialMove, importantMove, distract);
 
             // Decrease reduction if position is or has been on the PV
-            if (ss->ttPv)
-                r -= 1.0f;
+            //if (ss->ttPv)
+            //    r -= 1.0f;
 
             // Increase reduction for nodes that does not improve root alpha
             if (!RootNode && (ss->ply & 1) && bestValue >= -searchData->rootAlpha)