Send Two Return One Watari

   

kb: This shape is mentioned at NamelessTesuji.

[Diagram]

Common with beginners.


I think the "common with beginners" reference here is if Black fills at WC. However, it depends on who is komaster for W3. Let's investigate some of Black and White's responses.

This W3 fails.

[Diagram]

White tries a ko (5 at WC)


B6 is tesuji. White cannot connect because of oiotoshi, and even if he did connect, he cannot capture the capturing stone because of B6.

[Diagram]

White failure


This W3 threatens to capture all of the side Black stones.

[Diagram]

White tries to capture (5 at WC, 6 at BC)

If W is komaster, White should send two and let Black return one, then block on the side. Black connects, White pushes once.

[Diagram]

White success

If B is komaster, then White should play this way:

[Diagram]

White failure


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(OC) 2007 the Authors, published under the OpenContent License V1.0.
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