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Taisha Five Way Junction
Difficulty: Expert
Keywords: Joseki
This occurs some way into the main variation of the taisha joseki and may even be a six- or seven-way junction. The point of this page is to sort out which variations are attested as pro plays, and which are presumed just trick plays. The latter are perpetuated by joseki books.
For the hardcore enthusiast, this is position is the source of the major taisha variations. We'll look at Black a, less difficult than b or c. White 10 at d is possible.
This is the expected development, after a while the groups in the centre make some shape.
Black 1 here has been played by some top players down the years (Shusai, Sekiyama Riichi, Hashimoto Utaro). The line continues with 2 and 3, and is thoroughly analysed in Ishida.
Black 1 here is a pro play, though perhaps not recently (any advance on Kubomatsu-Kitani in 1934?) This is a pushing battle with a trick play in it. Black 3 may look as if it's easy to refute - but beware the two-stone edge squeeze!
This idea appeared in a couple of Go Seigen's games in the 1930s.
Black 1 and 3, not mentioned in Ishida, were played by Shuwa.
That leaves these plays a and b from Ishida unaccounted for; they may be outright tricks. Analysis is given there for a; for b too but that was played differently 1974-06-06 by Hashimoto Utaro against Magari Reiki (game on Gobase). Gobase also has a game 1973-10-31 between 1 dan pros Inoue Hatsue and Kimura Yoshio in which Black tries c. Sazn: A and B are Trick Plays This is a copy of the living page "Taisha Five Way Junction" at Sensei's Library. ![]() |