Beginner Exercise 17 / Solution

Sub-page of BeginnerExercise17
[Diagram]

White creates a ko

The solution is to hane at W1; black has to play B2 in order to make two eye shapes; the throw-in at W3 then starts the ko. This is a two-stage ko that is favourable for Black, in which where Black can immediately capture, forcing White to find the first threat.

[Diagram]

Black's squeamishness punished

If black plays the wimp and tries to run from the ko, he'll just die outright.

[Diagram]

White's misstep

If white tries to play on the top first, black will just hane and make two eyes (white can't push at a or black will immediately capture).



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(OC) 2009 the Authors, published under the OpenContent License V1.0.
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