/// 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);
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)
case KILLERS_S1:
cur = killers;
- end = cur + 2;
+ end = cur + 3;
return;
case QUIETS_1_S1:
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;