[Welcome to Sensei's Library!]

StartingPoints
ReferenceSection
About


Sub-pages (up)
Erratum1
Erratum2
Erratum3
Erratum4
Erratum5
Erratum6
Erratum7
Erratum8
Erratum9

Referenced by
1001ProblemsErrata

 

1001 Problems/Erratum 10
Sub-page of 1001Problems

[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 life and death 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. White 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) 2004 the Authors, published under the OpenContent License V1.0.