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Subject: Re: Does Junior 6 have underpromotion?

Author: Colin Frayn

Date: 12:57:46 04/13/00

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>>If it can't then it's not playing chess and you could sue the authors for
>>claiming that it's a chess program. *grin*

>It would play chess. As long as it does not play an illegal move, it plays
>chess. You can play chess even if you can't underpromote.

Not true.  The rules of chess state that you are allowed to underpromote.
Provided it allows _opponents_ to underpromote then it's OK, but if it doesn't
then the game it's playing isn't chess, but some simpler variant.

Though you (three) are right when you say that it could just choose not to, and
then that's fine.  I mean I could make a chess program which never castled as
someone said and that would still be chess, but only if it allowed opponents to
castle.

Anyway, it was just a light hearted comment :)

Cheers,
Colin



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