X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fsearch.cpp;h=15f870f5129c72916189a048d620825d3ace4c27;hp=897121fdc63570925ca02515c135fd8dd4e47bc1;hb=a64d524d026bc78e4779fa3249649271d905df2d;hpb=82f7d507eaf83e27a33bf0b433be08d23320b6fe

diff --git a/src/search.cpp b/src/search.cpp
index 897121fd..15f870f5 100644
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -92,7 +92,7 @@ namespace {
   // History and stats update bonus, based on depth
   int stat_bonus(Depth depth) {
     int d = depth / ONE_PLY;
-    return d > 17 ? 0 : d * d + 2 * d - 2;
+    return d > 17 ? 0 : 32 * d * d + 64 * d - 64;
   }
 
   // Skill structure is used to implement strength limit