Wedge - checking extension on fourth line
Keywords: Opening
Seo Pong-su-Cho Hun-hyeon 1988-12-22.
is most unusual. The ordinary move here is Black at a, which is still a checking extension. After
the white group will have no trouble making eyes, having a chance to slide in both directions.
![[Diagram]](../../diagrams/37/73f5c34c3dd281771371ddccc049dc23.png)
2024 the Authors,
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