GokyoShumyoSection4Problem78/Solution

[Diagram]

key move

Famous problem for its unexpected difficulty. It's not too hard to find the first move (everything else fails very quickly), but the follow up is difficult.

(There is some nice discussion of this problem in the Fujisawa tesuji dictionary.)

[Diagram]

continuation

Simple connection is defeated by B2.

[Diagram]

continuation

So White occupies the point himself. Then B2! is the decisive blow. White is short of liberties and can't play at a.


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