Author: Dann Corbit
Date: 10:54:57 12/24/03
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On December 24, 2003 at 10:40:19, Christophe Theron wrote: [snip] >Please explain how storing anything that has to do with 50 moves rules or >position repetition in the compressed would help avoiding considering the whole >game history. > >In any case you cannot avoid, if you want to deal with 50 moves rules or >repetition detection, to have the whole game history available. > >So storing anything about these in the compressed position is just a waste of >space. 50 move rule needs no game history. It needs only its current state. You don't care what the reversible moves were. It's totally irrelevant. The 3 move repetition rule does not need the whole game history. It needs the whole game history since the last non-reversible move. Like I said, this data is implicit in the game play itself. The point I was trying to make is that you can have one position that is identical by looking at the board [and even knowing the castling rights and e.p. status], but really it is 100*3 different positions.
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