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Beginner Exercise 86 Solution
Difficulty: Beginner
Keywords: Problem
The result is a ko. Refer to tripod group. Discussion
Paul Pogonyshev: this move looks fine. It threatens the lavalyn: Not really. See below. Paul Pogonyshev: Yes, it's not as fine as it looked :)
If White captures, Black responds with
If White doesn't capture again, she loses
unkx80:
Of course, lavalyn's alternative way of playing lavalyn claims the solution above fails:
Delaying the capture but preventing Black from playing in the corner - no suicide allowed.
The exchange of Paul Pogonyshev: it's night time and I am tired, but as far as I can see, White is alive with three eyes here. What's wrong?
lavalyn:
Paul Pogonyshev: This is what I believe is on the board after the sixth move. Black can't capture at a (ko). Next move White captures at b, or if Black has played there, at c and lives with three eyes. Or not? unkx80: Please see Basic Kofight Example on what goes on during a ko. Paul Pogonyshev: OK, I knew what ko is ;) I merely misunderstood the task, thinking it was to kill White.
This looks like it also works for ko. However, since White captures first in the previous diagram, White will prefer playing For more information, reference the tripod group.
This is a copy of the living page "Beginner Exercise 86 Solution" at Sensei's Library. ![]() |