X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fmovepick.cpp;h=8019f374bb90884da608bfa3b77d4861f11ec3e2;hp=984520a0e893a0fe9fb81ecf07246e0f144c7c71;hb=8a61b030a6cbfa70b7a473e31ae2662f1b8f39b9;hpb=0e1ad3ad33c65be8cfb2702b3df5500ef9d2f87f diff --git a/src/movepick.cpp b/src/movepick.cpp index 984520a0..8019f374 100644 --- a/src/movepick.cpp +++ b/src/movepick.cpp @@ -71,7 +71,7 @@ namespace { /// move ordering is at the current node. MovePicker::MovePicker(const Position& p, Move ttm, Depth d, const History& h, - Search::Stack* s, Value beta) : pos(p), Hist(h), depth(d) { + Search::Stack* s, Move refutationMove, Value beta) : pos(p), Hist(h), depth(d) { assert(d > DEPTH_ZERO); @@ -89,6 +89,7 @@ MovePicker::MovePicker(const Position& p, Move ttm, Depth d, const History& h, killers[0].move = ss->killers[0]; killers[1].move = ss->killers[1]; + killers[2].move = refutationMove; // Consider sligtly negative captures as good if at low depth and far from beta if (ss && ss->staticEval < beta - PawnValueMg && d < 3 * ONE_PLY) @@ -237,7 +238,7 @@ void MovePicker::generate_next() { case KILLERS_S1: cur = killers; - end = cur + 2; + end = cur + 3; return; case QUIETS_1_S1: @@ -329,7 +330,8 @@ Move MovePicker::next_move() { move = (cur++)->move; if ( move != ttMove && move != killers[0].move - && move != killers[1].move) + && move != killers[1].move + && move != killers[2].move) return move; break;