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4463 enclosure 3-3 invasion
Path: InvasionItinerary   · Prev: 44Point33InvasionJosekiHaneInsideCut   · Next: 4464Enclosure33Invasion
    Keywords: MiddleGame, Joseki

[Diagram]
The 3-3 point invasion with keima

In addition to the hoshi (4-4, star point) there is now a keima present. White invades. Black blocks off the wider side. In this position, making the hanging connection with 6 is a safe, thick move.



White 5 above isn't the usual play - White can die here. See 4463 enclosure, for the standard ko variation. Charles Matthews


[Diagram]
The 3-3 point invasion with keima

This joseki most often arises when the marked keima is a response to the marked keima kakari. In this position, connecting at 6 is almost obligatory.


[Diagram]
White tries to kill

What happens if Black tries to kill the invasion stones with 6 here ?


[Diagram]
Black tries to kill

This is Black's most severe continuation. The fight will depend on the surrounding stones. Locally, White is dead: after White b, Black c, d and e are miai. Note that Black 4 cannot be played at a.



What about this?

[Diagram]
Black blocks

[Diagram]
Black blocks

unkx80: The result should be a ko. See Tripod Group for a more detailed discussion.



[Joonas Tyystjärvi]: Supposing that the cutting point to the right of B2 is not usable, does this work? It seems to me that after W9, White is alive - are Black's moves correct? (Of course, the result is locally very bad for White.)

[Diagram]
Sacrifice one


I think Black can kill by playing B6 at W7 instead. If black omits 5 white a black b white 5 makes life - Andreas

[Diagram]
w placement

Author(s):



Path: InvasionItinerary   · Prev: 44Point33InvasionJosekiHaneInsideCut   · Next: 4464Enclosure33Invasion
This is a copy of the living page "4463 enclosure 3-3 invasion" at Sensei's Library.
(OC) 2004 the Authors, published under the OpenContent License V1.0.