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3443 enclosure
   

[Diagram]
Diag.: From a real game


From a game between low-ranking Chinese pros. Black tried the marked stone, making the 3443 enclosure. After the normal sequence to 7, you could say that Black benefits from the choice: compared with the enclosure at a, Black now has better aji here.

[Diagram]
Diag.: drawback


If White plays the large knight's approach instead, Black at 4 becomes a very important play. But the enclosure on the right is worse at supporting 4 than the 3453 enclosure at b, or the 3463 enclosure at c.


There are examples in pro play of the corner being enclosed in the 3443 pattern during the middle game, to leave the minimum aji. This enclosure should perhaps be seen in those terms (see comments on the late middle game under classification of positions).



This is a copy of the living page "3443 enclosure" at Sensei's Library.
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