Tenuki joseki

    Keywords: Joseki

Given that tenuki is a break in alternating play in some local situation, and a joseki is a set pattern of play (approved by experts), this should mean such a set pattern that fails to go by alternation.[1]

See the tenuki joseki pages index for a list of such discussions. The index has been established with the following aspects in mind.

Enclosures and transpositions

A sequence Black-Black in a corner is perhaps an enclosure, and that's not really meant by "tenuki joseki".

[Diagram]
5-3 joseki  

This here is more reasonably identified as the (ordinary) 5-3 press joseki rather than a 3-4 tenuki joseki.



Therefore for the purposes of classification transpositions by tenuki between 3-4, 3-5, 3-3 and 4-5 joseki are probably better classified in their non-tenuki orders.

Real tenuki joseki and recommended tenuki

[Diagram]
4-4 tenuki joseki  

It does however seem more natural to regard this double kakari joseki as being a 4-4 tenuki joseki, rather than a 6-3 joseki.

[Diagram]
White next ...?  

This is an example where tenuki next is actually recommended for White, as a way of showing that B3 isn't severe. See 4-5 point 4-3 approach ogeima, tenuki for details.



The possibility (always present - tenuki is always an option) of playing tenuki adds greatly to the scope of corner openings.

[Diagram]
Emergent tenuki joseki  

For example Yu Ch'ang-hyeok has been playing tenuki as Black in this position in recent years: W3 is one way for White next. See 3-4 point high approach two-space high pincer, ogeima, tenuki for more.


References

The book Joseki Volume 2 Strategy devotes the four chapters Stability, Urgency, Investment and Playing Elsewhere on the topic to state as the most important these conditions when tenuki is particularly attactive:

  • The set of local groups is stable.
  • Neither player has any urgent local move.
  • All previous local investments have been fulfilled.
  • The value for a subsequent local move has dropped significantly.

[1] For something about when you can and can't break off, see


Tenuki joseki last edited by tapir on September 10, 2014 - 11:39
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