On Dec 10, 2007 11:56 AM, Nick Wedd <[EMAIL PROTECTED]> wrote: > In message > <[EMAIL PROTECTED]>, Álvaro > Begué <[EMAIL PROTECTED]> writes > > >It is not my intention to sound confrontational. I really don't know > >how other rule sets deal with tricky situations. > > For long-cycle repetitions: > Japanese: A repetition lead to "no result". The game is replayed. > Chinese: A player may not repeat a previous board position and > when he does the game counts as half a win to each > player. (KGS interprets this as Positional Superko.) > Ing/SST: Some repetitions are forbidden by the SST ko rule, which > very few people understand. > AGA: Positional Superko > Tromp-Taylor: Positional Superko > NZ: Situational Superko > France: Natural Situational Superko > > Suicide is permitted by Ing/SST, Tromp-Taylor and NZ rules, and > forbidden by the others listed above.
Thanks for the brief summary of all these rulesets! It looks like even under non-superko rules, something special happens if a position is repeated, which means that a program should know the entire history of the game, or it may accidentally repeat a previous position, even if it is winning the game by a large margin. Álvaro.
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