1.1 --- a/src/rules/pawn.c Sat Mar 29 14:46:33 2014 +0100
1.2 +++ b/src/rules/pawn.c Sat Mar 29 16:53:58 2014 +0100
1.3 @@ -32,6 +32,22 @@
1.4
1.5 _Bool pawn_chkrules(Board board, Move *move) {
1.6 int8_t d = ((move->piece & COLOR_MASK) == WHITE ? -1 : 1);
1.7 +
1.8 + if (move->torow == (d < 0 ? 7 : 0)) {
1.9 + if (move->promotion) {
1.10 + uint8_t promopiece = move->promotion & PIECE_MASK;
1.11 + if (!promopiece || promopiece == PAWN || promopiece == KING) {
1.12 + return FALSE;
1.13 + }
1.14 + } else {
1.15 + return FALSE;
1.16 + }
1.17 + } else {
1.18 + if (move->promotion) {
1.19 + return FALSE;
1.20 + }
1.21 + }
1.22 +
1.23 if (move->capture) {
1.24 if (move->fromrow == move->torow + d && (
1.25 move->fromfile == move->tofile + 1 ||
