Overconcentrated shape

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    Keywords: Strategy

Chinese: 重复 (chong2 fu4)
Japanese: (korigatachi)
Korean:

Overconcentrated shape means too many stones (of one colour) in one part of the board for the work they do; so shape that is inefficient because it's too solid.

[Diagram]

Dosaku (White) - Yasui Chitetsu (Black)

Dosaku, the undisputed best player of his time, brought go to a new level of theoretical knowledge. It was he who introduced the concept of tewari analysis. Applying this, he tried to overconcentrate the shapes of his opponents, like in this 1670 game against Chitetsu.

[Diagram]

Continuation

[Diagram]

Korigatachi

After this sequence the black formation at the top is very strong. However the influence of the black groups overlaps in the marked area. This means that these stones have not been developed to their full efficiency on the board: they are overconcentrated.

--Stefan

Charles By Shusaku's day, I think all pros knew about avoiding overconcentration traps.


See also


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