X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Ftt.h;h=70283fca29bff341fd7d06d23ac12bacfdf8a66e;hp=84a4b9faec4701fb4b69b9c246cd01bf0952f267;hb=8fb45caadef67fb2ccc27857c15ade987d9f5e2f;hpb=328098d027e7c35625acbb28e42732137c02d0c1

diff --git a/src/tt.h b/src/tt.h
index 84a4b9fa..70283fca 100644
--- a/src/tt.h
+++ b/src/tt.h
@@ -2,6 +2,7 @@
   Stockfish, a UCI chess playing engine derived from Glaurung 2.1
   Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
   Copyright (C) 2008-2015 Marco Costalba, Joona Kiiski, Tord Romstad
+  Copyright (C) 2015-2016 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
 
   Stockfish is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -49,7 +50,7 @@ struct TTEntry {
 
     // Don't overwrite more valuable entries
     if (  (k >> 48) != key16
-        || d > depth8 - 2
+        || d > depth8 - 4
      /* || g != (genBound8 & 0xFC) // Matching non-zero keys are already refreshed by probe() */
         || b == BOUND_EXACT)
     {