Beginner Exercise 20 / Solution

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splice: White plays on the vital point. Possible continuations:

Black captures  

Black captures the two white stones and White throws in...

Black captures  

Black is reduced to one eye.

Shortage of liberties  

Anonymous: It should also be mentioned that B4, which would normally secure the second eye, does not work in this case, because of shortage of liberties. W5 captures!

TimH (18k): Huh? Why do you say B4 "would normally secure the second eye"?

extra liberty  

Answer to TimH: Lets give Black an extra liberty. W5 must be played at the outside liberty. B6 captures the two white stones. With B4 the throw in is no longer a problem.

Black connects  

Second variation, Black connects and White can almost fill the eyespace with three in a row. Black is dead.

another solution?  

Why doesn't this work?

Tas: because that allows black to create a straight four, which is alive.


And then Black plays on the other vital point. This is a miai for life, where black can play at either 3 or 4 if white plays at the other one.

Beginner Exercise 20 / Solution last edited by on August 18, 2010 - 22:02
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