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Double Chess. FIDE Chess x 2(with extra queen replacing what would be an extra king).[All Comments] [Add Comment or Rating]
Greg Strong wrote on 2020-09-02 UTC

I just tested this preset and it seems to mostly work. I tried all four castlings (king-side and queen-side, close-rook and far-rook) and they all worked. Moves often weren't displayed correctly, though. Queen-side castling with the close rook displays and works fine. King-side castling with the close rook does not display as legal, but it will work if you tell it to try anyway. King-side castling with the far rook does not display but will work. Queen-side castling with the far rook (a) does not display the legal move, but it will work anyway, and (b) displays a king move to the g-file as legal that should not work, but does.

Kevin also previously noted a castling in a real game that should have worked but didn't. This is Antoine's preset and he is no longer active. I will try to look at it in a few days if no one else does, but it would be great if someone else could take a look.