X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Ftt.cpp;h=c7118aea3fc672647b55f97d488ff29262d16e95;hb=c357c4ad6f7318234c4d745eaa6b0c4774e28741;hp=1f495ca9d12be229aaef9a8171690c5ae5d3ad73;hpb=699bae632f283746a3eee15c0950fcdbca8a355e;p=stockfish

diff --git a/src/tt.cpp b/src/tt.cpp
index 1f495ca9..c7118aea 100644
--- a/src/tt.cpp
+++ b/src/tt.cpp
@@ -1,6 +1,6 @@
 /*
   Stockfish, a UCI chess playing engine derived from Glaurung 2.1
-  Copyright (C) 2004-2021 The Stockfish developers (see AUTHORS file)
+  Copyright (C) 2004-2022 The Stockfish developers (see AUTHORS file)
 
   Stockfish is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -40,9 +40,9 @@ void TTEntry::save(Key k, Value v, bool pv, Bound b, Depth d, Move m, Value ev)
       move16 = (uint16_t)m;
 
   // Overwrite less valuable entries (cheapest checks first)
-  if (b == BOUND_EXACT
+  if (   b == BOUND_EXACT
       || (uint16_t)k != key16
-      || d - DEPTH_OFFSET > depth8 - 4)
+      || d - DEPTH_OFFSET + 2 * pv > depth8 - 4)
   {
       assert(d > DEPTH_OFFSET);
       assert(d < 256 + DEPTH_OFFSET);