int board_move_down(struct board* board) {
char a = board_merge_down(board);
return a | board_shift_down(board);
}
int board_move_down(struct board* board) {
return board_merge_down(board) | board_shift_down(board);
}
int board_move_down(struct board* board) {
char a = board_merge_down(board);
return a | board_shift_down(board);
}
int board_move_down(struct board* board) {
return board_merge_down(board) | board_shift_down(board);
}