diff --git a/src/search.cpp b/src/search.cpp index f135a090..ff32ecc1 100644 --- a/src/search.cpp +++ b/src/search.cpp @@ -1042,6 +1042,8 @@ moves_loop: // When in check, search starts here extension = 2 + (value < singularBeta - 78 && !ttCapture); depth += depth < 16; } + if (PvNode && !ttCapture && ss->multipleExtensions <= 5 && value < singularBeta - 50) + extension = 2; } // Multi-cut pruning