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Tsuke Nobi Invasion
Path: TsukeNobi · Prev: TsukeNobiKosumi · Next:
Keywords: Joseki
The 3-3 point invasion of White 5 can be played if the left side is important. Usually, the marked black stone (or Black a) will be present if White plays here. After this, Black will have to choose. Black 6 is standard, allowing White to enter the left side but gaining thickness on the upper side in return. The other possibility is Black a, which blocks White out of the left side, but allows her a quite large piece of corner territory. Locally, it means a loss for Black, but it is nevertheless often correct in a global context - when this joseki is played, the left side is important in most cases.
The combination of Black 1 and 3 is advised in Ishida's book. Black's intention is to be able to dispense with White a, and thus be able to take sente.
If Black blocks at 2, White can easily get a nice amount of corner territory. Black himself builds a wall facing the right. After White 9, Black can play elsewhere, but if he does want to extend his wall, Black a is an excellent point.
If White connects with White 1, immediately playing the tesuji of Black 2 is correct. This stone makes Black 4 extra effective.
Playing at 2 without cutting at 6 first is incorrect timing. After White has exchanged 3 for 4, she can answer Black 6 at 7, so now she will play at 5 rather than a.
If he does not mind pushing White along the fourth line here, Black can also push at 1 without playing in at a first.
White could also answer Black 1 with White 2 here. White will of course get less territory on the upper side now, but she has the sequence of White a-Black b-White c to look forward to, to reduce the left side. Authors: Path: TsukeNobi · Prev: TsukeNobiKosumi · Next: This is a copy of the living page "Tsuke Nobi Invasion" at Sensei's Library. ![]() |