X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fevaluate.cpp;h=6d95fd58cb6cca53a1c968d7fbdaddf142f1e934;hp=445ba9cb00b3dcd49565962c5c3cb0c6209f5902;hb=a44c5cf4f77b05a0385c127b7c26cf086a73120e;hpb=a40ded2884b512a84afe9af9ff5782f6634d316f

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index 445ba9cb..6d95fd58 100644
--- a/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@ -89,7 +89,7 @@ namespace {
   //
   // Values modified by Joona Kiiski
   const Score WeightsInternal[] = {
-      S(252, 344), S(252, 259), S(46, 0), S(247, 0), S(259, 0)
+      S(252, 344), S(216, 266), S(46, 0), S(247, 0), S(259, 0)
   };
 
   // MobilityBonus[PieceType][attacked] contains mobility bonuses for middle and
@@ -462,8 +462,8 @@ namespace {
     // no minor piece which can exchange the outpost piece.
     if (bonus && bit_is_set(ei.attackedBy[Us][PAWN], s))
     {
-        if (    pos.pieces(KNIGHT, Them) == EmptyBoardBB
-            && (SquaresByColorBB[color_of(s)] & pos.pieces(BISHOP, Them)) == EmptyBoardBB)
+        if (   !pos.pieces(KNIGHT, Them)
+            && !(SquaresByColorBB[color_of(s)] & pos.pieces(BISHOP, Them)))
             bonus += bonus + bonus / 2;
         else
             bonus += bonus / 2;
@@ -488,7 +488,7 @@ namespace {
     const Color Them = (Us == WHITE ? BLACK : WHITE);
     const Square* pl = pos.piece_list(Us, Piece);
 
-    ei.attackedBy[Us][Piece] = EmptyBoardBB;
+    ei.attackedBy[Us][Piece] = 0;
 
     while ((s = *pl++) != SQ_NONE)
     {
@@ -850,7 +850,7 @@ namespace {
 
         // Increase the bonus if the passed pawn is supported by a friendly pawn
         // on the same rank and a bit smaller if it's on the previous rank.
-        supportingPawns = pos.pieces(PAWN, Us) & neighboring_files_bb(s);
+        supportingPawns = pos.pieces(PAWN, Us) & neighboring_files_bb(file_of(s));
         if (supportingPawns & rank_bb(s))
             ebonus += Value(r * 20);
 
@@ -979,7 +979,7 @@ namespace {
         pliesToGo = 2 * movesToGo - int(loserSide == pos.side_to_move());
 
         // Generate list of blocking pawns and supporters
-        supporters = neighboring_files_bb(s) & candidates;
+        supporters = neighboring_files_bb(file_of(s)) & candidates;
         opposed = squares_in_front_of(loserSide, s) & pos.pieces(PAWN, winnerSide);
         blockers = passed_pawn_mask(loserSide, s) & pos.pieces(PAWN, winnerSide);