if (relative_rank(Us, s) >= RANK_5)
score += RookOnPawn * popcount(pos.pieces(Them, PAWN) & PseudoAttacks[ROOK][s]);
- // Bonus for rook on same file as their queen
- if (file_bb(s) & pos.pieces(Them, QUEEN))
+ // Bonus for rook on the same file as a queen
+ if (file_bb(s) & pos.pieces(QUEEN))
score += RookOnQueenFile;
// Bonus for rook on an open or semi-open file