Diagonal to the first line

    Keywords: Tesuji
[Diagram]

Diagonal

B1 is the only way to capture the white stones and a tesuji worth remembering.

It is one of the exceptions to the proverb fill outside liberties first. Filling the inside liberty gives rise to an extra outside liberty namely the approach move at a.


[Diagram]

Mistake 1

Filling the outside liberty causes death.

[Diagram]

Mistake 2

The descent gives a seki in gote.



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