X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fsearch.cpp;h=204e5fc8b7440cf941c893fe3a4deafc68285d3c;hp=09d272e56983361fe813032c0051adf011169aac;hb=e40b06a0503b44bae5508a371d961914828214b6;hpb=55bd27b8f08a151128d7065fa2819aa3e9605299 diff --git a/src/search.cpp b/src/search.cpp index 09d272e5..204e5fc8 100644 --- a/src/search.cpp +++ b/src/search.cpp @@ -42,6 +42,7 @@ namespace Search { LimitsType Limits; std::vector RootMoves; Position RootPosition; + Color RootColor; Time::point SearchTime; StateStackPtr SetupStates; } @@ -91,7 +92,7 @@ namespace { int BestMoveChanges; int SkillLevel; bool SkillLevelEnabled, Chess960; - Value DrawValue[2]; + Value DrawValue[COLOR_NB]; History H; template @@ -174,7 +175,7 @@ void Search::think() { Position& pos = RootPosition; Chess960 = pos.is_chess960(); - Eval::RootColor = pos.side_to_move(); + RootColor = pos.side_to_move(); TimeMgr.init(Limits, pos.startpos_ply_counter(), pos.side_to_move()); TT.new_search(); H.clear(); @@ -192,8 +193,8 @@ void Search::think() { { int cf = Options["Contempt Factor"] * PawnValueMg / 100; // In centipawns cf = cf * MaterialTable::game_phase(pos) / PHASE_MIDGAME; // Scale down with phase - DrawValue[ Eval::RootColor] = VALUE_DRAW - Value(cf); - DrawValue[~Eval::RootColor] = VALUE_DRAW + Value(cf); + DrawValue[ RootColor] = VALUE_DRAW - Value(cf); + DrawValue[~RootColor] = VALUE_DRAW + Value(cf); } else DrawValue[WHITE] = DrawValue[BLACK] = VALUE_DRAW; @@ -801,7 +802,7 @@ split_point_start: // At split points actual search starts from here && type_of(pos.piece_on(to_sq(move))) != PAWN && type_of(move) == NORMAL && ( pos.non_pawn_material(WHITE) + pos.non_pawn_material(BLACK) - - PieceValue[Mg][pos.piece_on(to_sq(move))] == VALUE_ZERO)); + - PieceValue[MG][pos.piece_on(to_sq(move))] == VALUE_ZERO)); // Step 12. Extend checks and, in PV nodes, also dangerous moves if (PvNode && dangerous) @@ -1183,7 +1184,7 @@ split_point_start: // At split points actual search starts from here && !pos.is_passed_pawn_push(move)) { futilityValue = futilityBase - + PieceValue[Eg][pos.piece_on(to_sq(move))] + + PieceValue[EG][pos.piece_on(to_sq(move))] + (type_of(move) == ENPASSANT ? PawnValueEg : VALUE_ZERO); if (futilityValue < beta) @@ -1314,7 +1315,7 @@ split_point_start: // At split points actual search starts from here while (b) { // Note that here we generate illegal "double move"! - if (futilityBase + PieceValue[Eg][pos.piece_on(pop_lsb(&b))] >= beta) + if (futilityBase + PieceValue[EG][pos.piece_on(pop_lsb(&b))] >= beta) return true; } @@ -1419,7 +1420,7 @@ split_point_start: // At split points actual search starts from here // Case 2: If the threatened piece has value less than or equal to the // value of the threatening piece, don't prune moves which defend it. if ( pos.is_capture(threat) - && ( PieceValue[Mg][pos.piece_on(tfrom)] >= PieceValue[Mg][pos.piece_on(tto)] + && ( PieceValue[MG][pos.piece_on(tfrom)] >= PieceValue[MG][pos.piece_on(tto)] || type_of(pos.piece_on(tfrom)) == KING) && pos.move_attacks_square(m, tto)) return true;