Level 11 is possible, no? - wait nvm not with the. no that's still. no it's. what./ yeah it's possible, rook on g7 blocking queen, bishop slides round via h7, wait no its not possible. rightttt. well played i did not understand that for a long time
If the bishop and the rook is blocking the queen's path, that means that the queen has gotten there via the diagonal path, where it would be checking the white king. however, the knight is also checking the black king so that means that for the queen to be on that square, the queen had to be checking the white king, but if the queen had gotten there after the knight was there, the black king would've been in check. so therefore, it's impossible