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Tori Shogi. Tori Shogi, or Bird Shogi. A variant of Japanese Chess on a 7 by 7 board. (7x7, Cells: 49) [All Comments] [Add Comment or Rating]
H. G. Muller wrote on 2014-05-08 UTC
I just updated the package, as there was a bug in WinBoard considering dropping of a Pheasant illegal.

A Japanese website ( ) mentions a different repetition rule: there the side that first created a repeated position must alter its move to prevent it is repeated for the third time, rather than the one playing out of it. Except during a check evasion; you can always evade whichever way you like.

For Shokidoki I adopted the practically identical rule that it is forbidden to repeat, but that perpetual checking is even more forbidden.