OD1P - July 31 / Discussion

Sub-page of OD1PJuly31
[Diagram]

Only a ko

jvt: Black 1 looks good but it is only a ko.

[Diagram]

If White 2 elsewhere...

Black 3 occupies the important point and kills.

[Diagram]

Continued

If White captures at 8, Black creates a false eye at 9.

[Diagram]

Variation

White stones get captured in snapback on the left.


[Diagram]

Black's next move?

[Diagram]

Continued 1: (ko)

6 at 2.

[Diagram]

Continued 2: (Black 1 kills)

jvt: White can't get a ko like this.

[Diagram]

Mr.jvt:Why don't B 2?

[Diagram]

Answer

DieterVerhofstadt (1k): White will eventually have to play at a and capture at b. Her eye space then consists of three in a row. That's a dead shape, since Black can throw in again at 1. --(exchanged b/w RogerHale?)


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