GokyoShumyoSection5Problem12/Solution

[Diagram]

Second-line throw-in first

a and b are miai. Black string is saved. This is the original solution. But...

[Diagram]

Refuted

...White wins by this block instead of W4 above (unless outside complications at a work).

[Diagram]

Variation 1

W2 connect is wrong.

[Diagram]

Variation 2

W2 block is easily refuted by B3.

[Diagram]

Wrong order of play

B1 is a weak order of play. W4 secures an eye and prevents oiotoshi more easily (compare with Variation 2 above).


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