Systematic Joseki 4-4 3-6 6-4 3-9

  Difficulty: Beginner   Keywords: Joseki

Summary - Strategy - Hoshi Low approach Ikken tobi Niken tobi

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In beginners' books 4 is usually described as an error, leading to overconcentrated shape. However, things are not so clear, as White can still invade the corner at san-san.

I feel the invasion sequence should be included here.

unkx80: Sometimes the exchange of B5 and W6 is not played. While the exchange makes White overconcentrated, W6 is indeed a very strong move towards the center.


[Diagram]

3-3 jump

Rich: There's some aji, but not enough to compensate. As long as black's stones remain fairly stable, it's an endgame play, not a corner invasion: Black keeps the corner. This, according to all professional opinion I've ever read, is not a joseki; it is why if white intends to play the marked stone, she should always play at the 4-2 point first.


Historical Notes


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(OC) 2005 the Authors, published under the OpenContent License V1.0.
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