Adjust TTdepth acceptance on early cutoff

[stockfish] / src / search.cpp

diff --git a/src/search.cpp b/src/search.cpp
index e7e33edef8f7acd4b1b41e9861e7a78e36158c03..b30af89f1317da0307b38b1f66c10ff2e6bd32bb 100644 (file)
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -673,7 +673,7 @@ namespace {
     // At non-PV nodes we check for an early TT cutoff
     if (  !PvNode
         && ss->ttHit
-        && tte->depth() >= depth
+        && tte->depth() > depth
         && ttValue != VALUE_NONE // Possible in case of TT access race
         && (ttValue >= beta ? (tte->bound() & BOUND_LOWER)
                             : (tte->bound() & BOUND_UPPER)))