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1001ProblemsErrata

 

1001 Problems Erratum 10
   

[Diagram]
Life and death puzzle

Rich: 'a' is given as the correct answer, but in the book the continuation shows black killing white; this assumes sub-optimal play by white (a seki obtained by playing at 'b').

While seki is technically alive, it is less desirable than out-and-out life.

Zook: Seki is often the solution to a L&D problem. If the author decides to give a less optimal variation for the attacker as the main line, it is because many people may miss the point.


[Diagram]
Life and death puzzle

I assume this is the diagram given. Black kills White: due to shortage of liberties she can't make a Bulky Five. That's a point the author assumes to be missed more easily than the seki.

In any case, B1 is the only solution.



This is a copy of the living page "1001 Problems Erratum 10" at Sensei's Library.
(OC) 2003 the Authors, published under the OpenContent License V1.0.