4-5 point 4-3 approach keima, contact at 6-3, vulgar cut

    Keywords: Joseki, Problem, Question
Vulgar play by White  

As a deviation from the joseki White's cut with W1 and W3 has a vulgar feeling and requires a tesuji by Black.

Inviting suicide  

B1 invites W2, which is suicidal for White.

White makes an awful mistake  

Black peeps at B2, White connects at W3 to avoid double atari, Black cross-cuts at B4, and the white lump is in danger.

White caught in a loose ladder  

The only move with a snowball's chance in hell of getting White out of this mess is atari at W1. Black extends and White must connect at W3. Black now captures White with a loose ladder.

How White should avoid the loose ladder  

White's best defense is immediately to take a black liberty with W2.

Next, B3 is an important kikashi. Black B5 gives White sente. However, when the time is right, Black can come back and capture two white stones in sente by squeezing at a , making Black even thicker.

The result is not good for White, as Black gets good territory and influence and White's stones are overconcentrated.

W6 at b, capturing two Black stones and saving all his stones, would be a small move, and Black has no need to answer: not worth losing sente.

4-5 point 4-3 approach keima, contact at 6-3, vulgar cut last edited by bugcat on September 17, 2021 - 20:06
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