Comments on: Joseki of the week 1 http://journal.go.org.au/2009/10/01/joseki-of-the-week-1/ It's all fun and games, until someone loses an eye... Fri, 25 Nov 2011 11:53:42 +0000 hourly 1 http://wordpress.org/?v=3.3 By: Edd http://journal.go.org.au/2009/10/01/joseki-of-the-week-1/#comment-529 Edd Sun, 20 Dec 2009 14:09:14 +0000 http://journal.go.org.au/?p=600#comment-529 Black-4 in the last diagram is a mistake. Black should play atari at E15. Next white plays a nobi (d14). Black plays a nobi to the left with B15. The next move is a tesuji (which is mentioned in www.brugo.be). Also it's the most popular move in professional go. White should play at F17. Which is a big point. Black has no choice but to connect at e16. which is rather overconcentrated but unavoidable. next white simply defends the cutting point in the corner with B18. And still (!) black needs to add a move at E13. In both sequences the result is better for white. But B4 presented in your diagram is assuming that black does not know what he is doing. There's no reason for black to play D16 if he is just planning to throw the 2 stones away. Black-4 in the last diagram is a mistake. Black should play atari at E15.
Next white plays a nobi (d14).
Black plays a nobi to the left with B15.

The next move is a tesuji (which is mentioned in http://www.brugo.be). Also it’s the most popular move in professional go. White should play at F17. Which is a big point. Black has no choice but to connect at e16. which is rather overconcentrated but unavoidable.

next white simply defends the cutting point in the corner with B18.
And still (!) black needs to add a move at E13.

In both sequences the result is better for white. But B4 presented in your diagram is assuming that black does not know what he is doing. There’s no reason for black to play D16 if he is just planning to throw the 2 stones away.

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