RE: computer-go: Go4++: Passing in tsume searches.

[Jean-Pierre Vesinet <jpvesinet@xxxxxxxxxx>]

>  9 . . * * * * * . .
>  8 . * * 0 0 0 * * .
>  7 . * 0 0 . 0 0 * .
>  6 . * 0 0 * * 0 * .
>  5 . * 0 . * * 0 * .
>  4 . * 0 0 . 0 0 * .
>  3 . * 0 0 0 0 0 * .
>  2 . * * * * * * * .
>  1 . . . . . . . . . 
>    A B C D E F G H
> 
> 0 is alive in a seki because he has a 7 space eye.
> However, if it is his turn, he MUST pass or he kills
> himself.
> 
> Also, If * tries to capture 0 by playing inside the
> eye, then 0 must continue to pass until * gives atari:
> When * gives atari, 0 captures and live.

It is not a seki. Black 1,3 kills. White 2=pass.
White 4 captures, but this is a nakade shape.

 9 . . * * * * * . .
 8 . * * 0 0 0 * * .
 7 . * 0 0 . 0 0 * .
 6 . * 0 0 * * 0 * .
 5 . * 0 1 * * 0 * .
 4 . * 0 0 3 0 0 * .
 3 . * 0 0 0 0 0 * .
 2 . * * * * * * * .
 1 . . . . . . . . . 
   A B C D E F G H