From: VoyagerOne <excelgeek@gmail.com>
Date: Sun, 14 Feb 2016 19:35:07 +0000 (-0500)
Subject: History Stat Formula Simplification
X-Git-Url: https://git.sesse.net/?p=stockfish;a=commitdiff_plain;h=bfe9044ad9f823f973bd8ef36f6b69f6ee997616;ds=sidebyside

History Stat Formula Simplification

STC:
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 67476 W: 12561 L: 12521 D: 42394

LTC:
LLR: 2.96 (-2.94,2.94) [-3.00,1.00]
Total: 111923 W: 15147 L: 15149 D: 81627

Bench: 8430465

Resolves #588
---

diff --git a/src/movepick.h b/src/movepick.h
index f4a104d6..e703cbc9 100644
--- a/src/movepick.h
+++ b/src/movepick.h
@@ -57,8 +57,8 @@ struct Stats {
     if (abs(int(v)) >= 324)
         return;
 
-    table[pc][to] -= table[pc][to] * abs(int(v)) / (CM ? 512 : 324);
-    table[pc][to] += int(v) * (CM ? 64 : 32);
+    table[pc][to] -= table[pc][to] * abs(int(v)) / (CM ? 936 : 324);
+    table[pc][to] += int(v) * 32;
   }
 
 private: