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The Chess Variant Pages

This page is written by the game's inventor, Stephane Burkhart.

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Stephane Burkhart wrote on 2005-07-24 UTC
Thanks Larry for your comments. It made me think it over, as I didn't
considered the game by this side. What guided me designing the game was
preserve the proportion of controlled 'squares' going from 2D to 3D, in
order to preserve the same interest (tactic, strategy, easyness to
Checkmate the King,...) while opening the game. According to me, it
appears that you need twice the number of pieces (in adding triagonal
movement) to perform 80% of 2D game. So doing, it's true that
the King, even on board side, would normally require to summon twice as
much pieces as in 2D. I've checked a few configurations, and for
instance, 2 rooks and 1 bishop (or 1 knight) seem to be sufficient to
checkmate if the bare King is on one side of the first(or last)level, and
the other pieces may occupy the 2 next levels.
You can check that 2 bishops and 1 knight works as well. Of course, a
thorough examination would tell what the minimum number of pieces would
for each situation (King protected or not, in the board side or not,
etc...) which I'm determined to pursue. It remains that as the game
proceeds, pieces can be missing...
As to adopting new rules (Shogi capture-and drop) I don't fancy it for
this game, except if the game prove unplayable as it is.

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