Re: [computer-go] Mathematically sound rules for determining when thegame is over

[Arthur Cater <Arthur.Cater@xxxxxx>]

> Hello,
> I've been trying to figure out a good set of rules for unequivocally 
> determining when a game is over. Ssince mutual passing only works 
> when both players agree on the score, what happens if they never 
> agree, regardless of how far the game progresses? If the rules of go 
> are to be logically sound there must be a way to determine the score 
> from the rules of the game when it has been fully played out.
>
> What I've come up with is: (I'm assuming chinese rules with super-ko rule.)
> * The game is over when neither black nor white have any valid moves 
> except moves that put one of its own groups into atari.
> * When the game is over your score is the number of stones of your 
> colour on the board and the number of empty intersections surrounded 
> on all sides by stones of your colour.
>
> This seems to work; when all groups have only two one-stone eyes or 
> are in seki the game is over and the score is easy to determine. But 
> are there any problems or inconsistensies with the standard rules 
> that I'm missing?
>
> Regards,
> David
>
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Maybe I'm being silly, but. Suppose white has filled all the board except
a three-in-a-row, and black has one stone in the middle of it. Neither can
play except to put an own group into atari but the game is not over!

Arthur
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