Author: Tord Romstad
Date: 05:24:16 03/09/04
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On March 08, 2004 at 16:07:47, Marc Bourzutschky wrote: >On March 08, 2004 at 13:46:44, Tord Romstad wrote: > >> >> >>In hexagonal chess, there is an interesting complication caused by the >>fact that there are actually two kinds of wins: When a player is mated, >>the result is 1-0, like in normal chess. But when the game ends in >>stalemate, the result is 3/4-1/4. >> >>Apart from this, the only difference compared to normal chess is the >>shape of the board and the movement of the pieces. >> > >The different stalemate status is not hard to implement. You run the generator >twice, where on the first run you resolve wins/losses, and on the 2nd run you >resolve stalemates/draws. That's good news to me. :-) >With 91 squares on the hexagonal board, 5-piece endgames are comparable to >6-piece endgames on a 8x8 board and will thus be the limit of what is reasonably >doable today. But the hexagonal board also has more symmetries compared to a square board. Wouldn't this help to reduce the size of the files, and the amount of computations necessary to produce the tablebases? >Once you have a move generator and a reasonably efficient way of >indexing positions building a tablebase generator should be pretty >straightforward. Great! I'll have a look at it. Thank you very much for your reply! Tord
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