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The king cannot move over the f8 square, which is covered by the queen
Thanks! I must admit that I wasn't aware of that rule in chess.
Your king can not pass through check as in real life which chess is often based of of the queen would snag it. A similar rule is en passant (should check that one too) and the idea behind that is, is that when the pawn was moving up to the rank of the other pawn it could be taken in real life combat.
SAme as what I was going to type.