Don't early stop if we have a mated score

[stockfish] / src / search.cpp

diff --git a/src/search.cpp b/src/search.cpp
index 5ff23ad0fd894791c7b5e8ac625246c40343e1e5..e246512e985bbccff13c91c307454f680dd24356 100644 (file)
--- a/src/search.cpp
+++ b/src/search.cpp
@@ -440,6 +440,7 @@ namespace {
             if (    depth >= 12
                 && !stop
                 &&  PVSize == 1
+                &&  bestValue > VALUE_MATED_IN_MAX_PLY
                 && (   RootMoves.size() == 1
                     || Time::now() - SearchTime > (TimeMgr.available_time() * 20) / 100))
             {