Tweak history initialization

[stockfish] / src / thread.cpp

diff --git a/src/thread.cpp b/src/thread.cpp
index c03079d18e3da13522531962e3b87969fd4ddb83..ed3accc5f0bc72e6f3f2feb85c7aa42b5d233240 100644 (file)
--- a/src/thread.cpp
+++ b/src/thread.cpp
@@ -67,7 +67,7 @@ void Thread::clear() {
       {
           for (auto& to : continuationHistory[inCheck][c])
                 for (auto& h : to)
-                      h->fill(0);
+                      h->fill(-71);
           continuationHistory[inCheck][c][NO_PIECE][0]->fill(Search::CounterMovePruneThreshold - 1);
       }
 }