X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fevaluate.cpp;h=0130b05733282e00daf64488e8269b02f2be7cd4;hp=42ce525882f5d47bf9937328cbb03ba8b59de02e;hb=1e9397a2df3094589540838b4e24342ac53c212a;hpb=f0a7bed6fb8a95d7f3a8a226fc21159cb9b29810 diff --git a/src/evaluate.cpp b/src/evaluate.cpp index 42ce5258..0130b057 100644 --- a/src/evaluate.cpp +++ b/src/evaluate.cpp @@ -158,8 +158,8 @@ namespace { // PassedDanger[Rank] contains a term to weight the passed score constexpr int PassedDanger[RANK_NB] = { 0, 0, 0, 2, 7, 12, 19 }; - // KingProtector[PieceType-2] contains a penalty according to distance from king - constexpr Score KingProtector[] = { S(4, 6), S(6, 3), S(1, 0), S(0, -2) }; + // KingProtector[knight/bishop] contains a penalty according to distance from king + constexpr Score KingProtector[] = { S(4, 6), S(6, 3) }; // Assorted bonuses and penalties constexpr Score BishopPawns = S( 3, 5); @@ -330,9 +330,6 @@ namespace { mobility[Us] += MobilityBonus[Pt - 2][mob]; - // Penalty if the piece is far from the king - score -= KingProtector[Pt - 2] * distance(s, pos.square(Us)); - if (Pt == BISHOP || Pt == KNIGHT) { // Bonus if piece is on an outpost square or can reach one @@ -348,6 +345,9 @@ namespace { && (pos.pieces(PAWN) & (s + pawn_push(Us)))) score += MinorBehindPawn; + // Penalty if the piece is far from the king + score -= KingProtector[Pt == BISHOP] * distance(s, pos.square(Us)); + if (Pt == BISHOP) { // Penalty according to number of pawns on the same color square as the