From: VoyagerOne <excelgeek@gmail.com>
Date: Tue, 29 Aug 2017 17:06:19 +0000 (-0400)
Subject: Adjust moveCount history only at LMR
X-Git-Url: https://git.sesse.net/?p=stockfish;a=commitdiff_plain;h=7b4c9852e1421ebe6ec326c38f04ad575ad91053

Adjust moveCount history only at LMR

STC:
LLR: 3.32 (-2.94,2.94) [-3.00,1.00]
Total: 17584 W: 3277 L: 3131 D: 11176

LTC:
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 26412 W: 3447 L: 3334 D: 19631

Bench: 5417521
---

diff --git a/src/search.cpp b/src/search.cpp
index 06262131..1e70be60 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -908,8 +908,7 @@ moves_loop: // When in check search starts from here
               }
 
               // Reduced depth of the next LMR search
-              int mch = std::max(1, moveCount - (ss-1)->moveCount / 16);
-              int lmrDepth = std::max(newDepth - reduction<PvNode>(improving, depth, mch), DEPTH_ZERO) / ONE_PLY;
+              int lmrDepth = std::max(newDepth - reduction<PvNode>(improving, depth, moveCount), DEPTH_ZERO) / ONE_PLY;
 
               // Countermoves based pruning
               if (   lmrDepth < 3