BQM 217

    Keywords: EndGame, Tactics, Problem, Question

The following diagram comes from a game I was asked to discuss for the GTL. Where would you, not being caught up in the sequence of moves, play in this position ? Dieter

[Diagram]

Large-scale life-and-death

Charles Am I Black or White? It might depend ...

[Diagram]

White is clearly alive

If it's White to play, it looks like White needs to make a big group live with 1 here. That's one eye, and there are two half eyes in this group.

[Diagram]

Black steals the eye

Black 1 here might kill White. I'd be somewhat concerned as Black, though.

[Diagram]

Black in trouble?

Isn't White 6 now a serious attempt to kill the corner?

[Diagram]

Holding the corner together

Is this the envisaged sequence, after White plays the marked stone? Now Black a does live.


Dieter: White to play. I didn't think of the aggressive attack Black has but I agree that the status of White's group is uncertain if not unsettled. The only Black group showing a weakness is the lower left corner. Therefore I thought that the marked white stone in your last diagram occupies a vital spot for both and thus must be the biggest point on the board.

[Diagram]

Large-scale life-and-death

But maybe it is not very attractive ...

[Diagram]

Large-scale life-and-death

Charles Is that sequence right? Did Black play the marked stone to steal an eye? Obviously Black 2 here is wrong; so White is now alive after 1. That means Black's throw-in is wrong technique.


This is a copy of the living page "BQM 217" at Sensei's Library.
(OC) 2016 the Authors, published under the OpenContent License V1.0.
[Welcome to Sensei's Library!]
StartingPoints
ReferenceSection
About