Kyu Exercise 7 / Solution

Sub-page of KyuExercise7
Time is of the essence  

The marked black stones have only two turns of aji left in them - the first move is nearly certain to be ate.


Now Black better has enough ko threats, or White will finish off on a - this is a two stage ko. b is a ko threat, but obviously smaller than the ko (deiri counting). If Black uses b, White may choose to let Black escape his group, roughly half of the total value.

White fails  

White answers wrong after B1. Now B3 catches the white group in a snapback.

Failing attempts by Black:

Variation A fails  

White can also answer B3 with W4 at a.

Variation B fails  

Variation C fails  

Same result as variation A.

Kyu Exercise 7 / Solution last edited by togo on November 27, 2012 - 20:10
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