Maruseru/ Invade On The Fourth Line

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maruseru: The content of this page has been generated from an SGF file by sgf2dg using the Games::Go::Dg2SL converter. You can edit it and I might "master edit" the SGF file and then regenerate this page. After regeneration, all discussion will have been lost. This is considered a feature, not a bug. :)

White to invade the upper side. Black seems to have made a mistake in his choice of joseki in the upper left corner, as this joseki should only be played if Black has a stone in the middle of the upper side.

Initial setup  
Diagram 1: 1  

W1: Conventional wisdom says to invade on the third line because it is easier to make a base there. However, in this formation, it is good to invade on the fourth line, because White doesn't want to make a base on the top anyway, but needs to run out. For running out, the fourth line is better than the third line. White has plenty of good continuations in the points 'a' to 'd'. Note that 'c' threatens to cut.

Variation 1 at move 1 in Diagram 1: 1  

W1: An invasion on the third line will certainly live, but now Black can build outside influence more easily than if the invading stone had been on the fourth line.

Maruseru/ Invade On The Fourth Line last edited by maruseru on February 10, 2007 - 12:28
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