Sacrifice a single stone on the second line 2

yk 4d* - kishiko 4d*  

This is game 82 from the Go Teaching Ladder.

Here is a typical device to do something for a corner shut in by a double approach. (Cf. 3-6 point pincers.)

Continuation  

Here was a little unreasonable. White should have played at , to avoid being shut in.

Variation  

Black can play more simply here for influence, up to the table shape .

Comment by Seong-june Kim 6d, from the unpublished book 'Fighting Fit'.

Charles Matthews