Xuanxuan Qijing Problem 118 / Attempts

Warfreak2: I see no better than ko for black.

[Diagram]

Main line

[Diagram]

Main line

[Diagram]

Main line

[Diagram]

Main line (ko)


Warfreak2: Other initial moves for white:

[Diagram]

Alternative (failure for White)

[Diagram]

Alternative (reverts to main line)


Warfreak2: Black cannot kill by removing the eye immediately, as white has a liberty at a:

[Diagram]

Alternative (failure for Black)

MN Dave: That looks like success to me; see the following diagram.

[Diagram]

After black forces the capture (4 at white+circle)

Or if W2 connects at 3, then B3 at W2 holds W to one eye.

TimH, 18k: But that only works if white waits to capture and allows black at 4-5 first.

[Diagram]

Alternative (failure for Black)

[Diagram]

Alternative (failure for Black)


[Diagram]

reversal

Herman: Reversal to above line


[Diagram]

first try

Oni, 22k: If White plays W4 to a, Black plays B5 to W4.

[Diagram]

second

W10=B1, c=B7, d=B9.

correction:

[Diagram]

Two eyes

In this position White plays atari this way. If Black captures with B2, . . .

[Diagram]

Snapback

White plays atari with W3. If now Black takes with B4, W5 takes back at 3 in a snapback.


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