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PGB131

 

PGB121
   

[Diagram]
Diag.: Position after black 121

White's group at the top needs a second eye and black has to make it is difficult as possible for white, getting some profit in the process.


[Diagram]
Diag.: Moves 122-131


White push 1 and 3 is a great achievement as white managed to connect in sente to a group that was sacrificed.

Black 2 does not allow white to move to the left side and black 4 denies white an eye.

Black 4 is slack. A bamboo was much better in this situation.

[Diagram]
Diag.: Bamboo

If black plays bamboo here white has to play one more move to connect. Then 6 denies white an eye and black gets one more stone on the side for free.



White jumps out with 5. I am a little bit uneasy about this move as the shape is with aji, but white has to try to run fast.

Black 6 is a boshi that is an effective stopper as the rule.

White 7 seems too thin. The purpose is to run threatening black at the same time.

Black 8 has a purpose to strengthen the attacking stones.

White plays tenuki at 9 threatening to exchage the corner for a group of black stones.

Black 10 is a usual connection in the situations of this kind. This stone is threatened to connect above.


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