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Parahouse. (Updated!) Shogi + Strong pieces. (9x9, Cells: 81) [All Comments] [Add Comment or Rating]
H. G. Muller wrote on 2022-05-21 UTC

You have not written that in your article, and it is not obvious. Because a King can usually 'commit suicide' when that ends the game. If I capture the opponent King, I don't have to worry whether that leaves my own King in check. If that was not the case it would be legal to step with your King next to the opponent's King when you are protected. Because he would not be allowed to capture you with that King, so you would not be in check. You cannot be in check after the game has ended. It would also be legal to step your King into the range of an enemy piece that is pinned to its own King. As that piece would not attack you, since it is pinned.

It always has to be specified explicitly whether a game-terminating condition must be fulfilled by a legal move, or whether a pseudo-legal move suffices.