Sunday Problem #9

Published 2 Aug 2020 by antti (last edited 3 Sep 2020)

Like Sunday Problem #8, this is also from Guanzi Pu.

Black to play.

Solution
Correct solution
Black’s 2-1 placement of 1 is the key to solving this problem. 2–6 are White’s correct resistance, and the result is a kō for White’s life.
Black fails
If Black starts with the hane of 1, white 2 lives unconditionally.

Comments (1)


antti wrote 10 months, 2 weeks ago:

Solution added.