One-Two-Three example 3

    Keywords: Tactics
A slip in style  

B1 and B3 in this joseki position were played by Shinomiya Yonezo against Jowa in 1821, 31 January [ext]

Atari-then-connect may be 'natural' for many players; but in this case simply connecting at B3 without the B1/W2 exchange is the joseki. You can see this as application of conventional wisdom about the staircase, and the 123 principle.


White goes on the attack, with W1, W3 and W5 which are like a slow-motion driving tesuji.[1] Then adding W7 before playing W9 is good style.


W5 is another inducing move, adding purpose to W7. After B10 White successfully went after Black on the top side.

Though he eventually lost this two-stone game, this sequence gives an idea of Jowa's power.

Charles Matthews

[1] Without the atari, White has to be more circumspect.

Old joseki  

Assuming Black just connects solidly with black+circle, this joseki from the nineteenth century shows White having to concentrate on making sensible shape.

Isn't playing atari in cases like this generally considered bad style? Black is forcing White to play at a point that would otherwise be a cutting point, thus Black's atari is a thank you move. -- Andre Engels

Yes; there is probably a rule like 'only play atari then connect when both stones are essential', just because atari will so often be aji keshi. -- Charles

One-Two-Three example 3 last edited by on September 24, 2013 - 16:02
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