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 white+circle. 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 white+circle)  


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 white+circle, 6 at black+circle)  

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  

Send Two Return One Watari last edited by kb on February 8, 2007 - 00:12
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