X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fendgame.cpp;h=a3961840bc29d320bd56adb7d37349f613b76613;hp=5e021f1132917aa36d397a1f090f71938c72cb99;hb=b9bc6e823f061753419e563c4f923e60bd8c6193;hpb=673bc5526fa3d352f823ad144fb521b5dc98f45c

diff --git a/src/endgame.cpp b/src/endgame.cpp
index 5e021f11..a3961840 100644
--- a/src/endgame.cpp
+++ b/src/endgame.cpp
@@ -406,11 +406,11 @@ ScaleFactor Endgame<KBPsK>::operator()(const Position& pos) const {
   // No assertions about the material of weakerSide, because we want draws to
   // be detected even when the weaker side has some pawns.
 
-  Bitboard pawns = pos.pieces(PAWN, strongerSide);
+  Bitboard pawns = pos.pieces(strongerSide, PAWN);
   File pawnFile = file_of(pos.piece_list(strongerSide, PAWN)[0]);
 
   // All pawns are on a single rook file ?
-  if (   (pawnFile == FILE_A || pawnFile == FILE_H)
+  if (    (pawnFile == FILE_A || pawnFile == FILE_H)
       && !(pawns & ~file_bb(pawnFile)))
   {
       Square bishopSq = pos.piece_list(strongerSide, BISHOP)[0];
@@ -460,12 +460,12 @@ ScaleFactor Endgame<KQKRPs>::operator()(const Position& pos) const {
   Square kingSq = pos.king_square(weakerSide);
   if (   relative_rank(weakerSide, kingSq) <= RANK_2
       && relative_rank(weakerSide, pos.king_square(strongerSide)) >= RANK_4
-      && (pos.pieces(ROOK, weakerSide) & rank_bb(relative_rank(weakerSide, RANK_3)))
-      && (pos.pieces(PAWN, weakerSide) & rank_bb(relative_rank(weakerSide, RANK_2)))
-      && (pos.attacks_from<KING>(kingSq) & pos.pieces(PAWN, weakerSide)))
+      && (pos.pieces(weakerSide, ROOK) & rank_bb(relative_rank(weakerSide, RANK_3)))
+      && (pos.pieces(weakerSide, PAWN) & rank_bb(relative_rank(weakerSide, RANK_2)))
+      && (pos.attacks_from<KING>(kingSq) & pos.pieces(weakerSide, PAWN)))
   {
       Square rsq = pos.piece_list(weakerSide, ROOK)[0];
-      if (pos.attacks_from<PAWN>(rsq, strongerSide) & pos.pieces(PAWN, weakerSide))
+      if (pos.attacks_from<PAWN>(rsq, strongerSide) & pos.pieces(weakerSide, PAWN))
           return SCALE_FACTOR_DRAW;
   }
   return SCALE_FACTOR_NONE;
@@ -643,14 +643,14 @@ ScaleFactor Endgame<KPsK>::operator()(const Position& pos) const {
   assert(pos.piece_count(weakerSide, PAWN) == 0);
 
   Square ksq = pos.king_square(weakerSide);
-  Bitboard pawns = pos.pieces(PAWN, strongerSide);
+  Bitboard pawns = pos.pieces(strongerSide, PAWN);
 
   // Are all pawns on the 'a' file?
   if (!(pawns & ~FileABB))
   {
       // Does the defending king block the pawns?
       if (   square_distance(ksq, relative_square(strongerSide, SQ_A8)) <= 1
-          || (   file_of(ksq) == FILE_A
+          || (    file_of(ksq) == FILE_A
               && !in_front_bb(strongerSide, ksq) & pawns))
           return SCALE_FACTOR_DRAW;
   }
@@ -659,7 +659,7 @@ ScaleFactor Endgame<KPsK>::operator()(const Position& pos) const {
   {
     // Does the defending king block the pawns?
     if (   square_distance(ksq, relative_square(strongerSide, SQ_H8)) <= 1
-        || (   file_of(ksq) == FILE_H
+        || (    file_of(ksq) == FILE_H
             && !in_front_bb(strongerSide, ksq) & pawns))
         return SCALE_FACTOR_DRAW;
   }
@@ -710,9 +710,9 @@ ScaleFactor Endgame<KBPKB>::operator()(const Position& pos) const {
           return SCALE_FACTOR_DRAW;
       else
       {
-          Bitboard path = squares_in_front_of(strongerSide, pawnSq);
+          Bitboard path = forward_bb(strongerSide, pawnSq);
 
-          if (path & pos.pieces(KING, weakerSide))
+          if (path & pos.pieces(weakerSide, KING))
               return SCALE_FACTOR_DRAW;
 
           if (  (pos.attacks_from<BISHOP>(weakerBishopSq) & path)
@@ -779,14 +779,14 @@ ScaleFactor Endgame<KBPPKB>::operator()(const Position& pos) const {
     if (   ksq == blockSq1
         && opposite_colors(ksq, wbsq)
         && (   bbsq == blockSq2
-            || (pos.attacks_from<BISHOP>(blockSq2) & pos.pieces(BISHOP, weakerSide))
+            || (pos.attacks_from<BISHOP>(blockSq2) & pos.pieces(weakerSide, BISHOP))
             || abs(r1 - r2) >= 2))
         return SCALE_FACTOR_DRAW;
 
     else if (   ksq == blockSq2
              && opposite_colors(ksq, wbsq)
              && (   bbsq == blockSq1
-                 || (pos.attacks_from<BISHOP>(blockSq1) & pos.pieces(BISHOP, weakerSide))))
+                 || (pos.attacks_from<BISHOP>(blockSq1) & pos.pieces(weakerSide, BISHOP))))
         return SCALE_FACTOR_DRAW;
     else
         return SCALE_FACTOR_NONE;