diff --git a/src/search.cpp b/src/search.cpp index b0bcc57a..57316d85 100644 --- a/src/search.cpp +++ b/src/search.cpp @@ -1003,7 +1003,11 @@ moves_loop: // When in check, search starts from here // Futility pruning: parent node (~2 Elo) if ( lmrDepth < 6 && !inCheck - && ss->staticEval + 255 + 182 * lmrDepth <= alpha) + && ss->staticEval + 255 + 182 * lmrDepth <= alpha + && thisThread->mainHistory[us][from_to(move)] + + (*contHist[0])[movedPiece][to_sq(move)] + + (*contHist[1])[movedPiece][to_sq(move)] + + (*contHist[3])[movedPiece][to_sq(move)] < 30000) continue; // Prune moves with negative SEE (~10 Elo)