Main line: HashimotoUtaro
Variations: Dieter
By the way, is the famous move Sai immediately spots at a children's tournament in HikaruNoGo chapter 3.
If Black protects his stone, White captures three to make an eye.
If Black destroys an eye at , White surprisingly makes one at
.
If here,
connects and captures because of shortage of liberties.
This way variation (i) still holds its own.
Maybe this is a ridiculous variation but I couldn't help wondering what happens when Black takes that marvelous 1-2 point himself.
Anyone?
Nando: Well, I gave it a shot and couldn't find a way to unconditional life for White after in this diagram, my best result being ko.
JoelR: After working on this problem a couple of nights and missing some lines, I showed it to my boss, who is 3dan. He was able to finish it off. For now, I'll put the analysis at /Varation.
kasual: White lives in gote.
By the way Dieter, I totally agree with what you said at the bottom of the tsumego page. I figured a lot of variations starting with that diagram, and although I didn't succeed in solving the problem, I feel that I've learned quite a lot about shape and the special properties of the corner.