Page 184, problem 752, solution diagram
is the vital point. Black
and
are obvious. Black has two ways to make his second eye.
MikeTerry: Instead of , White can extend at
in Diagram 1, and Black does not have enough liberties to play at
, and so must capture the four white stones as follows:
MikeTerry: Now White can play back under the stones to form a 10,000 year ko. The book states none of the "Black to live" solutions involve ko...