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SanRenSei

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Sanrensei fuseki
Path: CentralLine   · Prev: MirrorGo   · Next: SanrenseiLowVariant
Path: OverviewOfFusekiPatterns   · Prev: NirenseiFuseki   · Next: YonrenseiFuseki

    Keywords: Opening, Go term

San-Ren Sei means roughly "Three star points in a row" in Japanese.

It is the name applied to the formation adopted by both players in the diagram below. This is one of the popular opening formations for Black in modern Go.

Its most famous supporter and promoter among the top professionals is Takemiya Masaki who almost invariably plays it as Black.

[Diagram]
Opposing sanrensei

Here both Black and White continue from an initial nirensei and set up sanrensei formations on opposite sides of the board. Although this approach for White is possible, it is probably more common in actual play to see White use 6 to approach Black's formation at a.



Choosing the sanrensei is in a sense a narrower or less flexible strategy than moving around more speedily from a nirensei formation. Black concentrates his resources on only one side of the board and waits to see how White will try to handle the situation. Despite having played on only one side, Black should be ready to react in different ways to White's counter-plan.


Dave Sigaty: The sanrensei is an influence-based approach rather than a territory-oriented one. Black will tend to build large, relatively loose frameworks, that only turn into territory later in the game as the middle game struggle progresses. It by a natural process becomes a fighting approach as White is usually forced to invade Black's framework(s) in order to prevent them from turning entirely into territory.

unkx80: It is possible for a sanrensei to turn into a yonrensei.


For dissenting opinion see High-concept opening myth. For recent evaluations on statistics, see the sanrensei files.

See also:



Path: CentralLine   · Prev: MirrorGo   · Next: SanrenseiLowVariant
Path: OverviewOfFusekiPatterns   · Prev: NirenseiFuseki   · Next: YonrenseiFuseki

This is a copy of the living page "Sanrensei fuseki" at Sensei's Library.
(OC) 2004 the Authors, published under the OpenContent License V1.0.