diff --git a/src/search.cpp b/src/search.cpp index 1a01601b..a349fd6c 100644 --- a/src/search.cpp +++ b/src/search.cpp @@ -234,6 +234,9 @@ namespace { // better than the second best move. const Value EasyMoveMargin = Value(0x200); + // Maximum number of moves to try before to split (strong YBWC) + const int MaximumSplitMove = 3; + // Last seconds noise filtering (LSN) const bool UseLSNFiltering = true; const int LSNTime = 4000; // In milliseconds @@ -1363,6 +1366,7 @@ namespace { if ( TM.active_threads() > 1 && bestValue < beta && depth >= MinimumSplitDepth + && (PvNode || moveCount > MaximumSplitMove * MinimumSplitDepth / depth) && Iteration <= 99 && TM.available_thread_exists(threadID) && !AbortSearch