On 10/23/06, John Tromp <[EMAIL PROTECTED]> wrote:
Who is to say that SSK doesn't lead to similarly bizarre situations?

I'm not sure what you would consider bizarre, but the example I posted works the same for SSK.

The problem is superko. For all common variants there are (rare) situations where an extreme* outcome is (needlessly) forced upon an otherwise balanced situation.

What's even worse is that superko bans can become active without need. IMO the only good reason for a long cycle rule is to prevent infinite games, so therefore it should never interfere with false cycles (which cannot repeat multiple times, or where *only* one side would need an infinite stone supply). If one makes the rule more general than absolutely necessary why stop at PSK? We might just as well say something like "any intersection may only be played once".

Erik


* illegal move -> any other (legal) move is better -> in the game graph this is equivalent to assigning an immediate maximal loss. Draws, which are typically not an option with superko, are less disturbing.

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