Bitboard pawnsOn7 = pos.pieces(Us, PAWN) & TRank7BB;
Bitboard pawnsNotOn7 = pos.pieces(Us, PAWN) & ~TRank7BB;
- Bitboard enemies = (Type == EVASIONS ? pos.pieces(Them) & target:
+ Bitboard enemies = (Type == EVASIONS ? pos.checkers():
Type == CAPTURES ? target : pos.pieces(Them));
// Single and double pawn pushes, no promotions
{
assert(rank_of(pos.ep_square()) == relative_rank(Us, RANK_6));
- // An en passant capture cannot resolve a discovered check.
+ // An en passant capture cannot resolve a discovered check
if (Type == EVASIONS && (target & (pos.ep_square() + Up)))
return moveList;
target = ~pos.pieces();
break;
case EVASIONS:
- target = between_bb(pos.square<KING>(Us), lsb(pos.checkers())) | pos.checkers();
+ target = between_bb(pos.square<KING>(Us), lsb(pos.checkers()));
break;
case NON_EVASIONS:
target = ~pos.pieces(Us);
if (more_than_one(pos.checkers()))
return moveList; // Double check, only a king move can save the day
- // Generate blocking evasions or captures of the checking piece
+ // Generate blocking interpositions or captures of the checking piece
return us == WHITE ? generate_all<WHITE, EVASIONS>(pos, moveList)
: generate_all<BLACK, EVASIONS>(pos, moveList);
}