Store score in TT when null search fails high

[stockfish] / src / tt.cpp

diff --git a/src/tt.cpp b/src/tt.cpp
index 935336dac3c7354e23c878fd1ba62d1a22adf72a..7efc6a0918872d6eb75be6f018c94667c720fc17 100644 (file)
--- a/src/tt.cpp
+++ b/src/tt.cpp
@@ -125,6 +125,7 @@ void TranspositionTable::store(const Key posKey, Value v, ValueType t, Depth d,
           if (tte->key() && t == VALUE_TYPE_EV_LO)
               return;
 
+          // Preserve any exsisting ttMove
           if (m == MOVE_NONE)
               m = tte->move();