Rook Push Enables Knight's (Quadruple!) Royal Fork
This confuses me - in this game, both the King and Queen had pieces that would recapture anything that attacked them but it is still a fork. I just checked in IGM Yasser Seirawan's book, "Play Winning Chess", and he defines it as "a simultaneous attack on two or more pieces by one enemy piece". Why does attacking protected pieces mean it isn't a fork? Can you explain again, please? THANKS!