Beginner Exercise 300 / Attempts

Sub-page of BeginnerExercise300
[Diagram]

ko

I think B can force a ko

unkx80: Wrong sequence - W6 at a lives.

[Diagram]

ko continued

Ko to kill.

[Diagram]

mistake by white: black kills

[Diagram]

Slightly different ko

No. White would get 2 eyes if it responds to 5 with 8. If black move to 6 after that, white's move to 9 will protect 3 stones in upper right.

[Diagram]

Black plays first and kills, a and b are miai

[Diagram]

What about this defense?

a,b and c,d are miai pairs for W to live.

[Diagram]

Black should start this way to kill.

W2 is needed to avoid falsification on top. If W4 at B5 then B5 at a.

Reuven: Sorry, W6 can still be played above B3 and keep the second eye here.

[Diagram]

Variation.

[Diagram]

Falcification variation.

[Diagram]

White plays first and lives, a points miai for the first eye and b points for the second.


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