X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fpawns.cpp;h=2459a6b05ea09ab170c9e857324078bf807912b1;hp=8f4232d7580a49e7008706abf55e14cbb360e4ac;hb=a9fa1fc7f76458b9e09410fe966f03324ada3cb3;hpb=1f1ef0897c986ad5e761dd04a223ae9af6048b09

diff --git a/src/pawns.cpp b/src/pawns.cpp
index 8f4232d7..2459a6b0 100644
--- a/src/pawns.cpp
+++ b/src/pawns.cpp
@@ -206,9 +206,9 @@ Score PawnInfoTable::evaluate_pawns(const Position& pos, Bitboard ourPawns,
       assert(pos.piece_on(s) == piece_of_color_and_type(Us, PAWN));
 
       // Passed, isolated or doubled pawn?
-      passed   = Position::pawn_is_passed(theirPawns, Us, s);
-      isolated = Position::pawn_is_isolated(ourPawns, s);
-      doubled  = Position::pawn_is_doubled(ourPawns, Us, s);
+      passed   = !(theirPawns & passed_pawn_mask(Us, s));
+      isolated = !(ourPawns & neighboring_files_bb(s));
+      doubled  = ourPawns & squares_behind(Us, s);
 
       // We calculate kingside and queenside pawn storm
       // scores for both colors. These are used when evaluating