[Welcome to Sensei's Library!]

StartingPoints
ReferenceSection
About


Sub-pages (up)
Discussion

Referenced by
BeginnerExercise85

 

Beginner Exercise 85 / Solution
Sub-page of BeginnerExercise85

[Diagram]
The toughest resistance from Black

B2 must be answered by W3 - and certainly not W4 or W5. One suffers from shortage of liberties, and the other leaves Black with B3.


[Diagram]
Variation

If B2 here, W3 is the only play that secures life.



[Diagram]
Failure 1

W1 looks like making two eyes, but due to the descent at BC, Black can play B2. Now White can only live by a ko at W3.

Note that W3 at a is wrong - see below.


[Diagram]
Failure 2

If W1 here, then B2 hits the critical spot, and White is dead.


[Diagram]
Double ko death

If White throws in with W1, B2 takes one of the kos. Now if White plays at a or b, Black fills with BC, holding White to one eye.


[Diagram]
Double ko death (ii)

If White later takes the ko back with W5, B6 takes the other ko. Now if WS, BC kills.



lavalyn, Dansc, Bill Spight, unkx80.




This is a copy of the living page "Beginner Exercise 85 / Solution" at Sensei's Library.
(OC) 2004 the Authors, published under the OpenContent License V1.0.