>The sequence is as interesting as the superko, really, because it's the >sort of strange sequence that would only occur to monte carlo programs.
Yes, that is why I posted it. >I'm very curious what black thought the win rate was before B9... I do not know. This position wasn't from a game. It was from a playout. I was searching for instances of "hole of three" situations, following MoGo's recommendation. I was building a regression suite of test cases. I don't know whether Pebbles could play that sequence. I just noticed the possibility of a repetition while I was validating that the situation was a genuine "hole of three." >As for black, looks like he should resign instead of B9. You are right that X dies first in alternating play. But the only way to be sure of that is to play B9 and see what happens. So "hole of three" rule does generate a critical play here. > 1 2 3 4 5 6 7 8 9 > A O O O X - X X O - > B - O O X X O O - - > C O - O X X - O O O > D - O X X O O O X O > E O O O O X X O X X > F X O O X X X X X - > G X X O O X O X - X > H - X X - O O O X - > J X X - O - X X - X > > X: B9 (hole-of-three) > O: A9 (atari) > X: B8 (capture) > O: A8 (atari) > X: A9 (capture) > O: A8 (capture) _______________________________________________ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/
