Rectangular six

    Keywords: Life & Death

Chinese: 板六 (ban3 liu4)
Japanese:
Korean:

A group with a big eye with the shape of a rectangular six, is alive except for rectangular six in the corner.

[Diagram]

Rectangular six

Here, the eyespace is at the side, but in the center the implications are the same. The vital points are a and b and they are miai, as shown in the following diagrams.

[Diagram]

Main line

W2 makes miai of a and b to live with six points.

[Diagram]

Variation

W2 makes miai of a and b to live with six points.

[Diagram]

Two moves in a row

If White tenukis, playing W4 elsewhere, White is still alive but now lives in seki: Black can at most almost fill with a bent four. However, this seki is not valid for rectangular six in the corner.


See also


This is a copy of the living page "Rectangular six" at Sensei's Library.
(OC) 2005 the Authors, published under the OpenContent License V1.0.
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