X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fevaluate.cpp;h=425ba6f8faead8b61e22d6713d815c5d3624b962;hp=fe92f7d7bcd9852296db2445f457e411f4106fb0;hb=288a604411fa72b06b30f16194cd03592b28f6f2;hpb=ba46599aa2224a78106346fb0615b0be174374f5 diff --git a/src/evaluate.cpp b/src/evaluate.cpp index fe92f7d7..425ba6f8 100644 --- a/src/evaluate.cpp +++ b/src/evaluate.cpp @@ -265,7 +265,6 @@ namespace { constexpr Score ReachableOutpost = S( 31, 22); constexpr Score RestrictedPiece = S( 7, 7); constexpr Score RookOnKingRing = S( 16, 0); - constexpr Score RookOnQueenFile = S( 6, 11); constexpr Score SliderOnQueen = S( 60, 18); constexpr Score ThreatByKing = S( 24, 89); constexpr Score ThreatByPawnPush = S( 48, 39); @@ -481,10 +480,6 @@ namespace { if (Pt == ROOK) { - // Bonus for rook on the same file as a queen - if (file_bb(s) & pos.pieces(QUEEN)) - score += RookOnQueenFile; - // Bonus for rook on an open or semi-open file if (pos.is_on_semiopen_file(Us, s)) score += RookOnFile[pos.is_on_semiopen_file(Them, s)]; @@ -910,7 +905,9 @@ namespace { sf = 37 + 3 * (pos.count(WHITE) == 1 ? pos.count(BLACK) + pos.count(BLACK) : pos.count(WHITE) + pos.count(WHITE)); else - sf = std::min(sf, 36 + 7 * pos.count(strongSide)); + sf = std::min(sf, 36 + 7 * pos.count(strongSide)) - 4 * !pawnsOnBothFlanks; + + sf -= 4 * !pawnsOnBothFlanks; } // Interpolate between the middlegame and (scaled by 'sf') endgame score @@ -1023,8 +1020,8 @@ Value Eval::evaluate(const Position& pos) { { // Scale and shift NNUE for compatibility with search and classical evaluation auto adjusted_NNUE = [&](){ - int mat = pos.non_pawn_material(); - return NNUE::evaluate(pos) * (1024 + mat / 32) / 1024 + Tempo; + int mat = pos.non_pawn_material() + PieceValue[MG][PAWN] * pos.count(); + return NNUE::evaluate(pos) * (720 + mat / 32) / 1024 + Tempo; }; // If there is PSQ imbalance use classical eval, with small probability if it is small