Clarify the mapping of files to queenside

[stockfish] / src / pawns.cpp

diff --git a/src/pawns.cpp b/src/pawns.cpp
index f60411993fcc0877ed83a8a632f25945018aa9db..ca4156dac522d76eefee8919bad2d9ab5ecf2724 100644 (file)
--- a/src/pawns.cpp
+++ b/src/pawns.cpp
@@ -198,7 +198,7 @@ Score Entry::evaluate_shelter(const Position& pos, Square ksq) {
       b = theirPawns & file_bb(f);
       int theirRank = b ? relative_rank(Us, frontmost_sq(Them, b)) : 0;
 
-      int d = std::min(f, ~f);
+      File d = map_to_queenside(f);
       bonus += make_score(ShelterStrength[d][ourRank], 0);
 
       if (ourRank && (ourRank == theirRank - 1))