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A concrete example

Posted By: Timothy Chow
Date: Friday, 13 January 2012, at 2:47 p.m.

In Response To: Best anchors for strongest backgame? (sebalotek)

You wrote:

I was kind of thinking about when I get hit multiple times very early on in the game

In that case, asking what the "best anchors for the strongest backgame" are may be the wrong question.

Below is a position that could arise for example from the sequence 54S-41H-44S-53>-62P-42K-54>-41. If one blindly uses the "rule" that a 1-4 backgame is better than a 1-5 backgame, then one might try bar/21 22/21 here, but I believe that bar/20 is much better. I think the only plausible alternative to bar/20 is bar/21 6/5*.

If you're the victim of this kind of blot-hitting contest, then typically your opponent's position will be undeveloped, because she will have been so busy hitting your blots that she will have had scant time to build any structure. The position is thus still very fluid and you should not think that the first two anchors you make will necessarily be there for the rest of the game.

gnubg143


2O '1O '1O5X2X4X ' ' '3O

 ' ' '1X1X3O '3O1O ' '2X

tchow205

Position ID: 4NuDAQXgXDggWQ Match ID: cIkQAAAAAAAA


The "which anchors" question applies more to positions like the one below, where the backgame is mature and you have a choice between a 1-3 backgame and a 2-3 backgame. Here your timing is not ideal for a 1-3 backgame, so I would go for the 2-3 backgame with bar/22 24/23.

gnubg131


2O1O2O2X2X3X2X1X ' ' '2O

 ' ' '1X '3O1O2O ' '1O4X

tchow218

Position ID: 2G7BAwTgGhnAWg Match ID: UYkMAAAAAAAA

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