Author: Trefor Deane
Date: 15:00:45 04/13/00
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On April 13, 2000 at 17:00:11, blass uri wrote: >On April 13, 2000 at 15:57:46, Colin Frayn wrote: > >>>>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. > >Junior5 allows the opponent to underpromote and the problem was only that it >does not consider underpromotion in the search. > >Uri I just discovered that my Sapphire II doesn't consider an opponents possible underpromotion as well! Tested on the Mate in 8 problem, posted about a week ago Trefor.
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