Keywords: Joseki, Shape

Chinese: -
Japanese: ツケオサエ (tsuke-osae)
Korean: -

Attach-block combination.

Attach then block  

This sort of pattern: B1 is a contact play (tsuke) and B3 a block (osae). This is a territorial way to play.

White normally plays W1 immediately to give Black the so-called hat shape. Then White has to deal somehow with the two cutting points a and b. Neither side has perfect shape here, therefore.

Before W1 is played, there was some aji at c - which disappears after B2. Black can play attach-block as an attacking technique, to make White heavy. When White is defending a group, the atari play W1 is probably something that White must play.

See attach-block joseki.

Charles Matthews

Attach-block last edited by hnishy on May 29, 2018 - 11:47
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