Lithel: After , black must play to open up some liberties. Now the White group inside has 3 liberties left, the Black group has 3 liberties as well, and it's White's move, but Black has an additional advantage...
Lithel: In this situation, playing at a now removes one of White's liberties. Approaching from the top requires the additional move at b though.
Mikesh: How about running at c?
Lithel: So if I'm reading this right, white is dead and black escapes. ( at a)
Mikesh: After black may take sente and play elsewhere. White cannot play . She has to connect above first. Otherwise B will capture there after is played. So maybe W should take sente after in the first place...
ChrisSchack: The clamp is the best I can see, 6 at either 7 or 8 are obvious failures ... but it fails anyway on the throw-in.
LukeNine45: I moved this to the solution page.
LukeNine45: In this situation, from above, what happens if white plays ?
JoelR: Black plays . White cannot play at a, it's self-atari, and if White plays at b, it transposes into "Fail from the top"; Black need not play again.
ChrisSchack: The clamp is the best I can see, 6 at either 7 or 8 are obvious failures ... but it fails anyway on the throw-in.
LukeNine45: This is what I had in mind and is quite close to what actually happened in the game.
togo: Why not doing the key play first, thereby catching two stones? White a can be answered with black b. White b would be sente, but it would be too in the first solution. Also in the first solution white can connect the two marked stones in sente after Black's first play.
ichundso?this is slightly worse because white can now capture this one stone, but it works too i think
ichundso? no, its the same since the marked stone can be captured anyways
Bill: If , is sente, threatening to move out. Then saves the two White stones and captures Black's dumpling. is a snapback.
mgelo: This could be even better for Black. After 3, both have 3 liberties, but W owes an extra approach move.
xela: This was the first thing that occurred to me when I saw this problem, but it doesn't work. See next diagram.