X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fmovepick.cpp;h=2e8eb665b9acd04573c9e438d77212f2888ccff6;hp=dcc94015d67560b916bdaa01b3775c982edef8ac;hb=7733dadfd7c8781e3bde3cc4e21751fa44ab6ed8;hpb=35782079749c8f16560a13b9740d1a76654c6fe2 diff --git a/src/movepick.cpp b/src/movepick.cpp index dcc94015..2e8eb665 100644 --- a/src/movepick.cpp +++ b/src/movepick.cpp @@ -75,7 +75,7 @@ MovePicker::MovePicker(const Position& p, Move ttm, Depth d, const History& h, int searchTT = ttm; ttMoves[0].move = ttm; badCaptureThreshold = 0; - lastBadCapture = badCaptures; + badCaptures = moves + MOVES_MAX; pinned = p.pinned_pieces(pos.side_to_move()); @@ -90,16 +90,16 @@ MovePicker::MovePicker(const Position& p, Move ttm, Depth d, const History& h, if (p.is_check()) phasePtr = EvasionsPhaseTable; - else if (d > Depth(0)) + else if (d > DEPTH_ZERO) { // Consider sligtly negative captures as good if at low // depth and far from beta. - if (ss && ss->eval < beta - PawnValueMidgame && d < 3 * OnePly) + if (ss && ss->eval < beta - PawnValueMidgame && d < 3 * ONE_PLY) badCaptureThreshold = -PawnValueMidgame; phasePtr = MainSearchPhaseTable; } - else if (d == Depth(0)) + else if (d == DEPTH_ZERO) phasePtr = QsearchWithChecksPhaseTable; else { @@ -148,16 +148,16 @@ void MovePicker::go_next_phase() { return; case PH_BAD_CAPTURES: - // Bad captures SEE value is already calculated so just sort them - // to get SEE move ordering. + // Bad captures SEE value is already calculated so just pick + // them in order to get SEE move ordering. curMove = badCaptures; - lastMove = lastBadCapture; + lastMove = moves + MOVES_MAX; return; case PH_EVASIONS: assert(pos.is_check()); lastMove = generate_evasions(pos, moves); - score_evasions_or_checks(); + score_evasions(); return; case PH_QCAPTURES: @@ -167,7 +167,6 @@ void MovePicker::go_next_phase() { case PH_QCHECKS: lastMove = generate_non_capture_checks(pos, moves); - score_evasions_or_checks(); return; case PH_STOP: @@ -228,11 +227,11 @@ void MovePicker::score_noncaptures() { from = move_from(m); to = move_to(m); piece = pos.piece_on(from); - cur->score = H.value(piece, to); + cur->score = H.value(piece, to) + H.gain(piece, to); } } -void MovePicker::score_evasions_or_checks() { +void MovePicker::score_evasions() { // Try good captures ordered by MVV/LVA, then non-captures if // destination square is not under attack, ordered by history // value, and at the end bad-captures and non-captures with a @@ -293,12 +292,10 @@ Move MovePicker::get_next_move() { if (seeValue >= badCaptureThreshold) return move; - // Losing capture, move it to the badCaptures[] array, note + // Losing capture, move it to the tail of the array, note // that move has now been already checked for legality. - assert(int(lastBadCapture - badCaptures) < 63); - lastBadCapture->move = move; - lastBadCapture->score = seeValue; - lastBadCapture++; + (--badCaptures)->move = move; + badCaptures->score = seeValue; } break;