3443 enclosure

    Keywords: Opening
[Diagram]
From a real game  



From a game between low-ranking Chinese pros. Black tried black+circle, making the 3443 enclosure. After the normal sequence to W7, you could say that Black benefits from the choice: compared with the enclosure at a, Black now has better aji here.

[Diagram]
Drawback  



If White plays the distant low approach instead, B4 becomes a very important play. But the enclosure on the right is worse at supporting B4 than the 3453 enclosure at b, or the 3463 enclosure at c.

There were further experiments in the 1990s by Yang Hui, Qiu Jun and Cho Hun-hyeon.


There are examples in pro play of the corner being enclosed in the 3443 pattern during the middle game, to leave the minimum aji. For example Sakata did this in a game 1979-04-18 against Ushinohama Satsuo[1].

This enclosure should perhaps be seen in those terms - a very tight way to take territory - despite tries to use it as an opening play.


[1]

This relates on conceptual level with comments at classification of positions on the late middle game.


3443 enclosure last edited by CharlesMatthews on June 10, 2003 - 17:53
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