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4-4 point 3-3 invasion double hane
Difficulty: Dan level
Keywords: Joseki
The Double Hane Variations
Instead of
In most cases the intention is to get sente, in which Black succeeds in this diagram. Grech: What if White plays 8 at 9? This also ameliorates the threat of capture from 7, and puts White ahead of Black on the third line.
lavalyn: If White plays 8 at 9 in the above, Black can take the corner as in the variation below, but also gets a four-stone wall instead of three. White 8 becomes close to a wasted move relative to the variation below.
Black can take the corner by playing Black 7 here, but giving White this ponnuki is not good in most cases.
White will most likely continue with these moves. In most cases, when White invades at the 3-3 point, Black has stones on both sides, at or around the places shown here. Black's left side stone has lost much of its value after this sequence.
Black would probably like to play the double hane of 1 in this diagram, but the marked white stones have too much aji for Black to do so. White can retake the corner - or worse.
If Black plays the double hane at 3, Black has to be prepared for this White 4. White intends to give up the corner in exchange for a position on the top.
After White 6 in the previous diagram, Black 1 is the joseki move, reaffirming the unity of the black stones. After Black 5, White can secure a base with a move like a or play tenuki.
Black 1 is vulgar[2], and White gets a relatively large corner. Still, if the upper side is important this might be playable. Black 3 at 7 is sometimes possible, depending on the position on the top side. This is too dogmatic: the connection may be honte, but in many pro games not connecting has been tried. [2] Charles Matthews This comment has gone unchallenged since the initial version of the page; but it's misleading. This atari play is recognised as joseki, but is highly sensitive to stones on the upper side, for example at a or b in this diagram.
These plays occur in pro games. When Black plays 3, White will eventually have to live at e. Before that White has a chance of pulling out the marked stone with White c, Black d and White continuing on the third line for a while. The books teach that this is good for White if Black has a stone at b, but poor if Black has a stone at a. If White lives immediately at e and Black tidies up by capturing at c, Black will be thick anyway (possibly slightly overconcentrated). There's an early example in Chapter 1 of Beauty and the Beast. This is a copy of the living page "4-4 point 3-3 invasion double hane" at Sensei's Library. ![]() |