Kyu Exercise 26 / Solution

Sub-page of KyuExercise26
[Diagram]

Preventing the cut

Black B1 puts White's marked stone in atari, so White backs off with W2. After B3, White can't play at a as it would be auto-atari (but b is a ko threat). This isn't optimal play by White, though.

LukeNine45: This is how white responded in the actual game, which made me happy.

[Diagram]

If white plays differently...

A ko fight ensues. White has to find the first ko threat.

LukeNine45: This is the solution I had in mind.

[Diagram]

Something for later...

If white can't expect to win the ko fight, she still has the play at 4 for a little more profit later on. This won't work, of course, if white plays and loses the ko. ~Alex Baxter

[Diagram]

Something for later... (9 at 4)

LukeNine45: Does that work? I don't think it should. I know it didn't in the game, but I could have set the problem up wrong...

My goodness...totally missed that extra liberty. Nevermind =).


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(OC) 2007 the Authors, published under the OpenContent License V1.0.
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