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Referenced by
BigEye
RabbittySix

 

Rectangular Six
   

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

[Diagram]
Diag.: 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:


[Diagram]
Diag.: Main line

White 2 makes miai of 'a' and 'b' to live with 6 points.


[Diagram]
Diag.: Variation

White 2 makes miai of 'a' and 'b'to live with 6 points.


[Diagram]
Diag.: Two moves in a row

If White 4 elsewhere, White is still alive but now 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 Comb Formation.



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