Erik van der Werf wrote:
> On Dec 10, 2007 6:48 PM, Don Dailey <[EMAIL PROTECTED]> wrote:
>   
>> In Go however, even if the fundamental game is unchanged you may be
>> playing illegal moves if you are not aware of the superko situation.
>>     
>
> And you think superko is part of the fundamental game???
>   
Well, I seem to be saying here that it is NOT part of the fundamental
game.   Really, the game is not changed a bit if you start from a
arbitrary position and ignore history but only because you will
presumably play the same moves for the same reasons and once again
encounter the superko situations that you discarded when you stored the
position without the state.

So what I'm stating here has nothing to do with whether superko is a
fundamental part of the game or not. 


> In my terminology *repetition*, and having some rules to prevent
> infinite games, is a fundamental aspect of the game. Superko is not
> fundamental.
>   
I'm not making an argument either way.   It clearly influences the game
but whether it's fundamental or not I'll leave to the philosophers.

> BTW Several authors here use the words repetition and superko as
> synonyms; I believe this is misleading.
>   
They are essentially synonyms - I don't see your point.   There is some
question about how you define a position (a board state, or a board
configuration i.e. SSK or PSK)  but you can nitpick if you want and say
that superko has nothing to do with positions repeating but I think when
a position repeats it's superko.

Are you just trying to nitpick semantics?

- Don


> Superko refers to a special class of rules for dealing with repetition
> (to avoid infinite games).
>
> Superko rules share the property that they declare moves that create
> repetition illegal. (They differ only in how they define a
> repetition.)
>
> Superko rules always do what they are supposed to do (prevent infinite
> games), but sometimes they do a bit more...
>
> E.
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>   
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