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VernalEquinoxReng...

 

Side pattern from VER 2003
    Keywords: Opening

The pattern on the lower side of the Vernal Equinox Rengo 2003 is interesting, if not so common.

[Diagram]
White to play

In this case White at a to suppress BC is always a big play.



White b or c might also be played, depending on the overall position. Here as usual restricting to a side pattern means that more hits can be found, in a database, than for a whole-board pattern (not surprisingly, the rengo deviated from pro play a long time ago). On the other hand one must be careful in judging any sequence, in isolation from the global position.

[Diagram]
White attacks

If it is too slow for White to play in the right corner, this is one interesting way.



This has been played by top pros: Kajiwara Takeo against Otake Hideo in the 1970 Meijin League; Fujisawa Hideyuki against Kobayashi Satoru 1995-05-25 in the Gosei (when White had an extra stone at x). Taking White's corner position to be quite thick after WC, this is a natural direction of play.

[Diagram]
White attacks, continuation

Otake jumped out of trouble with B1. Then W2 is a play from the old Chinese games.



B3 and W4 are usual, but lead into a very serious cross-cut fight. In Kajiwara's style, this led to a large-scale sacrifice sequence (and victory).

Charles Matthews



This is a copy of the living page "Side pattern from VER 2003" at Sensei's Library.
(OC) 2003 the Authors, published under the OpenContent License V1.0.