Re: computer-go: Rules clarification

[Nick Wedd <nick@xxxxxxxxxxxxx>]

In message <OCEMIBLADPONKHPIDIHPKEIBHGAB.hsr@xxxxxxxxxxxxxxxxx>, Scott Roy
<hsr@xxxxxxxxxxxxxxxxx> writes

>White has more stones on the board, so he wins with area scoring.  Nick's
>comment on the number of prisoners is correct, though, so the score really
>is indeterminate with territory scoring.
>
>It's also clear enough how to find the outcome using any of the superko
>rules.  My question is: what happens using the basic ko rule?
>
>In particular, what's the outcome of this game under Japanese rules?

The position was

    -------------
  7|O O O O O O O|7
  6|O O O O O O O|6
  5|O O O O O O O|5    # to play
  4|O O O O O O O|4
  3|O O O O O O O|3
  2|# # # O O O O|2
  1|. # . # . O .|1
    -------------

or, equivalently

    -------------
  2|# # # O O O O|2    # to play
  1|. # . # . O .|1
    -------------

There are really two questions here:
1:  How will the game continue, assuming skilful play?
2:  What, then, will be the result?

We are to assume Japanese rules.

1.
I can see two possible lines of skilful play:
    B pass
    W pass
and
    B C1
    W pass
    B pass

2.
After either line, the result is seki.  So no points are scored on the
board.  The prisoners (unspecified) and the komi (unspecified) are added
up, and the sum determines the result.

Nick
-- 
Nick Wedd    nick@xxxxxxxxxxxxxxxxx