diff --git a/src/search.cpp b/src/search.cpp index cfb569b9..6585f7bc 100644 --- a/src/search.cpp +++ b/src/search.cpp @@ -1383,8 +1383,7 @@ moves_loop: // When in check, search starts here // Bonus for prior countermove that caused the fail low else if (!priorCapture) { - // Extra bonuses for PV/Cut nodes or bad fail lows - int bonus = (depth > 5) + (PvNode || cutNode) + (bestValue < alpha - 97 * depth); + int bonus = (depth > 5) + (PvNode || cutNode) + (bestValue < alpha - 97 * depth) + ((ss-1)->moveCount > 10); update_continuation_histories(ss-1, pos.piece_on(prevSq), prevSq, stat_bonus(depth) * bonus); }