Source:
Problem diagram.
Black plays.
Analysis:
Myron Souris
Can a pro make a mistake on a kyu level tsumego problem?!
You decide.
Solution follows
(or click here to download SGF)
A mistake?
Black 1, 3, and 5 is the "official" solution, which ends
with Black 5. But White has the throw-in at 6. After Black 7,
White lives with most of the group with 8.
See the SGF for a blizzard of other lines for this entire problem.
Black variation.
Varying with 3 doesn't seem to help Black. White simply
dodges to 4. Through 7, Black only has a ko that White
takes 1st.
Correct line?
Isn't Black 1 the real killing move?
After White blocks with 2 and 4, Black 5 ruins White's
eye shape. White can struggle to create eye space with
6 and 8, but Black 9 kills.
White variation.
If White tries to create eye space with 4, Black still
plays 5. White 6 and 8 again fail to create 2 eyes after
Black ataris with 9.
Email the Problem Of The Week editor at potw@usgo.org
Hits: 875