diff --git a/src/search.cpp b/src/search.cpp index 28fecf87..8f9a369a 100644 --- a/src/search.cpp +++ b/src/search.cpp @@ -700,7 +700,8 @@ moves_loop: // When in check and at SpNode search starts from here && depth >= 8 * ONE_PLY && abs(beta) < VALUE_KNOWN_WIN && ttMove != MOVE_NONE - && ttValue != VALUE_NONE + /* && ttValue != VALUE_NONE Already implicit in the next condition */ + && abs(ttValue) < VALUE_KNOWN_WIN && !excludedMove // Recursive singular search is not allowed && (tte->bound() & BOUND_LOWER) && tte->depth() >= depth - 3 * ONE_PLY;