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4-4 point 5-5 shoulderhit
Keywords: Joseki
IwaHanako: I have used the 5-5 attack/invasion to create a large center moyo and finish one of my sides. Even though I grant my opponent a large corner, in the situation I used it I already had at least one corner and some of another, the influence I gained in the center seemed well worth it. Comments?
Alex Weldon: It's also not an invasion. Invasion implies going under or between the opponent's stones. I suppose that if the 4-4 stone was part of a moyo, this could qualify as keshi (reduction). IwaHanako: Alex, I had the feeling it wasn't an invasion but what is it then?
Andre Engels: The normal move for IwaHanako: I've rewritten my top since 'invented' looked kinda stupid (especially after you posted a professional game :/).
This is the type of situation where one might see a professional play the 5-5 point shoulder hit. Kajiwara Takeo (White) vs. Takemiya Masaki, Gosei League playoff 1977. Charles The related 5-4 side contact play is seen in quite a number of pro games. Central fighting is one reason (as for the 5-5 shoulderhit); ko threats and ladder-breakers; but also sometimes as a kind of tesuji or sabaki play. It's generally a more interesting and flexible way, amongst unconventional plays round the 4-4 point.
There's a very nice example played by Karigane Junichi on Go Seigen in game 2 of their 1941 jubango. Go Seigen himself used it a number of times.
While we're here, what about the 3-4 contact play in the absence of an enclosure? (When there is an enclosure from the 4-4 point, this counts as joseki.)
This too occurs in pro games, though of course it is rare compared to playing an approach or the 3-3 invasion.
The common way to handle this in pro games seems to be
I play this one often in handicap games: Black normally plays This is a copy of the living page "4-4 point 5-5 shoulderhit" at Sensei's Library. ![]() |