dear Peter, > Here's one for you tournament directors and rules experts out there. I'm > probably missing something obvious (and will realize it just after I send > out this post), but here goes: > > 5.......... > 4#########. > 3.#.OOOOO## > 2##.O###OO# > 1.###.#.#O# > Â ABCDEFGHJK > In the diagram above, the white stones are obviously dead. The question is: > does white profit by playing G1, forcing black to connect at E1? (There is > no current ko.) > > It seems that, under AGA rules, the answer depends on whether we use area > (Chinese) or territory (Japanese) counting. I thought that wasn't supposed > to happen. > > Under area counting, all of this area belongs to black and prisoners don't > count, so clearly white's struggling is irrelevant. > > Under territory counting, the G1-E1 exchange gains one prisoner for each > player and costs black a point of territory. (Both players play one move, so > the pass stones aren't relevant.) Isn't this a gain of one point for white? > Is it the same under Japanese rules?
The prisoner W gains is already compensated by the creation of a new empty point in B territory (that the capture black stone used to occupy). Similarly, the addition of the white stone as prisoner is compensated by the addition of the black connecting stone. regards, -John _______________________________________________ Computer-go mailing list [email protected] http://dvandva.org/cgi-bin/mailman/listinfo/computer-go
