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Beginner Exercise 28 Solution
An uncertain solution by lavalyn:
The sequence from 1 to 4 yield a ko for life. Black cannot connect without removing the White stones due to damezumari.
To avoid the ko is impossible - here, White falsifies an eye so Black is left a cyclops.
Again avoiding the ko yields only death for Black.
The throw-in here doesn't work - the marked point will become a real eye for the corner group, so the two disconnected Black groups will have one real eye each and a shared eye - and thus lives.
A similar result occurs if White approaches from the side.
This is a copy of the living page "Beginner Exercise 28 Solution" at Sensei's Library. (C) the Authors, published under the OpenContent License V1.0. |