- ttMoves[1] = (ss->mateKiller == ttm)? MOVE_NONE : ss->mateKiller;
- killers[0] = ss->killers[0];
- killers[1] = ss->killers[1];
- } else
- ttMoves[1] = killers[0] = killers[1] = MOVE_NONE;
-
- numOfBadCaptures = 0;
- finished = false;
-
- Color us = pos.side_to_move();
-
- dc = p.discovered_check_candidates(us);
- pinned = p.pinned_pieces(us);
-
- if (p.is_check())
- phasePtr = EvasionsPhaseTable;
- else if (d >= Depth(3 * OnePly))
- phasePtr = useNullMove ? MainSearchPhaseTable : MainSearchNoNullPhaseTable;
- else if (d > Depth(0))
- phasePtr = useNullMove ? LowSearchPhaseTable : MainSearchNoNullPhaseTable;
- else if (d == Depth(0))
- phasePtr = QsearchWithChecksPhaseTable;
+ ttMoves[1].move = (ss->mateKiller == ttm) ? MOVE_NONE : ss->mateKiller;
+ searchTT |= ttMoves[1].move;
+ killers[0].move = ss->killers[0];
+ killers[1].move = ss->killers[1];
+
+ // Consider sligtly negative captures as good if at low
+ // depth and far from beta.
+ if (ss && ss->eval < beta - PawnValueMidgame && d < 3 * ONE_PLY)
+ badCaptureThreshold = -PawnValueMidgame;
+
+ phasePtr = MainSearchTable;
+ }
+
+ phasePtr += int(!searchTT) - 1;
+ go_next_phase();
+}
+
+MovePicker::MovePicker(const Position& p, Move ttm, Depth d, const History& h)
+ : pos(p), H(h) {
+ int searchTT = ttm;
+ ttMoves[0].move = ttm;
+ ttMoves[1].move = MOVE_NONE;
+
+ assert(d <= DEPTH_ZERO);
+
+ pinned = p.pinned_pieces(pos.side_to_move());
+
+ if (p.in_check())
+ phasePtr = EvasionTable;
+ else if (d >= DEPTH_QS_CHECKS)
+ phasePtr = QsearchWithChecksTable;