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.

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)

antti wrote 11 months, 1 week ago:

Solution added. That’s some cockroaching!