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4-4 point 3-3 invasion joseki
Path: InvasionItinerary · Prev: 33PointInvasion · Next: BlockOnTheWiderSide
Difficulty: Expert Keywords: Joseki
For a first view of this Joseki, see 3-3 Point Invasion. Players for whom this discussion goes too deep are advised to read that discussion instead. The 3-3 invasion behind a 4-4 point is one of the fundamental operations in go. It can take place at any time from the beginning of the middle game to late in the endgame as a speculative invasion. Whether it succeeds, and the correct line for both players to take, is much affected by any nearby stones and the existence of extensions from the 4-4 stone. Overview
After The general rule here is to block on the wider side. After this, Black a hane is the basic joseki, leading to the fundamental variations hane-stretch (see below) and double hane. Jumping away with Black b is a more modern variation, trying to get sente. Black c is an uncommon way to play. Tenuki at any point in these moves is likely to be bad.[1] The Basic Joseki: Hane then Stretch
Playing hane at
White therefore should not invade at the 3-3 point too early, but only when a kakari from the side is already less interesting. Black should not play Double hane variationsNow at 4-4 point 3-3 invasion double hane. Hane and Inside Hane
A novel technique in pro games in the past decade is to play
The inside hane at With this result White has sente but Black has been able to shut off both sides.
Summing up on this idea: White has lived quickly, and left some outside aji by playing Hane and Cut
Defying Conventional Wisdom - Black at bNow at 4-4 point 3-3 invasion, jumping away.
This
Here Further Reading
Crimson : I have a question - I don't know if it fits in the discussion. You need a clear area to succesfully invade at san-san, I believe. Can you please provide examples of what is clear enough and what isn't? Also, you don't want to get invaded at san-san when the middle game is about to be over, because you can't use influence much after the middle game. So, should I waste a move at the middle game to protect san-san, or should the corner be strong enough to stop the invasion at the end of the opening? I would also like to know which approach I should take when my opponent invades at san-san and the are around the corner is strong. Should these questions be moved to the less advanced page? Author(s):
Material moved to separate pages by Charles. [1]
Under no circumstances should Black play tenuki at this point. No point elsewhere can be large enough to compensate for allowing [2] This seems to be applied only in cases where Black has a stone at a, b or c; that is, exactly when the crawling fight mentioned at 4-4 point 3-3 invasion double hane would go badly for Black. [3] NB This is not a joke! This move was shown to me and several other Belgian players by Guo Juan, 5p. I remember having seen it in a pro game, but I can't remember which one. --Alain DJ: See this page for a reference Path: InvasionItinerary · Prev: 33PointInvasion · Next: BlockOnTheWiderSide This is a copy of the living page "4-4 point 3-3 invasion joseki" at Sensei's Library. ![]() |