X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Fpawns.cpp;h=d7848fbd2f33364cc63232c11646701dc47f1a5a;hb=d39bc2efa197ba2fd55b68eced1c60bcfe2facc1;hp=47c89ed4c076c73d6be4647ba1cd16f960438cec;hpb=5935daf8a5b6925a6af2084f87e3831b3bb17dac;p=stockfish

diff --git a/src/pawns.cpp b/src/pawns.cpp
index 47c89ed4..d7848fbd 100644
--- a/src/pawns.cpp
+++ b/src/pawns.cpp
@@ -87,7 +87,6 @@ namespace {
     {
         assert(pos.piece_on(s) == make_piece(Us, PAWN));
 
-        File f = file_of(s);
         Rank r = relative_rank(Us, s);
 
         e->pawnAttacksSpan[Us] |= pawn_attack_span(Us, s);
@@ -98,7 +97,7 @@ namespace {
         lever      = theirPawns & PawnAttacks[Us][s];
         leverPush  = theirPawns & PawnAttacks[Us][s + Up];
         doubled    = ourPawns   & (s - Up);
-        neighbours = ourPawns   & adjacent_files_bb(f);
+        neighbours = ourPawns   & adjacent_files_bb(s);
         phalanx    = neighbours & rank_bb(s);
         support    = neighbours & rank_bb(s - Up);
 
@@ -111,9 +110,8 @@ namespace {
         // full attack info to evaluate them. Include also not passed pawns
         // which could become passed after one or two pawn pushes when are
         // not attacked more times than defended.
-        if (   !(stoppers ^ lever ^ leverPush)
-            && (support || !more_than_one(lever))
-            && popcount(phalanx) >= popcount(leverPush))
+        if (   !(stoppers ^ lever) ||
+              (!(stoppers ^ leverPush) && popcount(phalanx) >= popcount(leverPush)))
             e->passedPawns[Us] |= s;
 
         else if (stoppers == square_bb(s + Up) && r >= RANK_5)