Weak Carpenter's Square

    Keywords: Life & Death
[Diagram]

Weak carpenter's square

The weak carpenter's square is a carpenter's square without the connection. The vital point is the same, but this time White kills the corner by playing at a.

That is, the fact that the WC stone here is white, rather than Black, changes a ko status to unsettled status.

[Diagram]

Endgame technique

If Black has secured life by playing on the vital point, there is an important endgame technique for White to remember: the forcing moves at 1 and 3.


[Diagram]

Weak carpenter's square

There's no stone at the marked point, but White a kills nonetheless.

-- unkx80


[Diagram]

not really a carpenter's square

What about this one? Klaus



[Diagram]

not really a carpenter's square

Here's one sequence. Bob McGuigan


This is a copy of the living page "Weak Carpenter's Square" at Sensei's Library.
(OC) 2007 the Authors, published under the OpenContent License V1.0.
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