X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fevaluate.cpp;h=1593a68ca67a2e8cabc23fbd25e1d41b3c6c1e4f;hp=9af22264b89ff00fbdd247eb33468072d750a962;hb=29ff925fd8026ceb2bd01d65a3db6bd416a5557e;hpb=e38eb2302d3d3451b387cc9524501d13f5ed63e4 diff --git a/src/evaluate.cpp b/src/evaluate.cpp index 9af22264..1593a68c 100644 --- a/src/evaluate.cpp +++ b/src/evaluate.cpp @@ -61,11 +61,11 @@ namespace { // KingAttackWeights array. int kingAttackersWeight[COLOR_NB]; - // kingAdjacentZoneAttacksCount[color] is the number of attacks to squares - // directly adjacent to the king of the given color. Pieces which attack - // more than one square are counted multiple times. For instance, if black's - // king is on g8 and there's a white knight on g5, this knight adds - // 2 to kingAdjacentZoneAttacksCount[BLACK]. + // kingAdjacentZoneAttacksCount[color] is the number of attacks by the given + // color to squares directly adjacent to the enemy king. Pieces which attack + // more than one square are counted multiple times. For instance, if there is + // a white knight on g5 and black's king is on g8, this white knight adds 2 + // to kingAdjacentZoneAttacksCount[WHITE]. int kingAdjacentZoneAttacksCount[COLOR_NB]; Bitboard pinnedPieces[COLOR_NB]; @@ -162,7 +162,7 @@ namespace { const Score Unstoppable = S( 0, 20); const Score Hanging = S(31, 26); const Score PawnAttackThreat = S(20, 20); - const Score PawnSafePush = S( 5 , 5); + const Score PawnSafePush = S( 5, 5); // Penalty for a bishop on a1/h1 (a8/h8 for black) which is trapped by // a friendly pawn on b2/g2 (b7/g7 for black). This can obviously only @@ -412,10 +412,10 @@ namespace { // attacked and undefended squares around our king and the quality of // the pawn shelter (current 'score' value). attackUnits = std::min(74, ei.kingAttackersCount[Them] * ei.kingAttackersWeight[Them]) - + 8 * ei.kingAdjacentZoneAttacksCount[Them] + + 8 * ei.kingAdjacentZoneAttacksCount[Them] + 25 * popcount(undefended) - + 11 * (ei.pinnedPieces[Us] != 0) - - mg_value(score) * 31 / 256 + + 11 * (ei.pinnedPieces[Us] != 0) + - mg_value(score) / 8 - !pos.count(Them) * 60; // Analyse the enemy's safe queen contact checks. Firstly, find the