Sunday Problem #90
Published 20 Feb 2022 by antti
(last edited 28 Feb 2022)
This is a variant of Sunday Problem #89.
Black to play and be a cockroach.
Solution
The attachment of black 1 is correct. The sequence here shows what happens if White waits until the last to fight the kō in the middle; in reality, White will fight it from the start, using the other moves as threats.
Black will have a hard time living, but the group still cannot be called unconditionally dead.
Comments (1)
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Solution added. That’s some cockroaching!