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Backgammon => Fibsboard Forum Matches => FFM 12 => Topic started by: diane on April 17, 2012, 10:41:08 AM

Poll
Question: Move
Option 1: 13/9, 13/7 votes: 3
Option 2: 9/5, 7/1 votes: 3
Option 3: 7/3, 7/1 votes: 0
Option 4: 7/1, 6/2 votes: 3
Option 5: 9/3, 6/2 votes: 1
Title: Game 2, move 7: Herd 6-4
Post by: diane on April 17, 2012, 10:41:08 AM
move?
Title: Re: Game 2, move 7: Herd 6-4
Post by: Julia_H on April 17, 2012, 11:11:49 AM
Spoiler
OK, so we can't run. I still don't want to let go of the mid, as it's stopping White's mid clearing nicely with any ace, and he's running out of other good aces as well as 10 doesn't clear either. I also don't want to stack up awkwardly and lose my board or capacity to build it quickly. I vote 7/1 6/2 and observe that lots of rolls make at worst a four-point board with one blot next time. Even if we get a shot next roll I think the blotty home board is better than the alternatives.
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Title: Re: Game 2, move 7: Herd 6-4
Post by: ah_clem on April 17, 2012, 01:41:32 PM
Spoiler


The most important next objcetive is to make the four point.  We don't want to play any checkers past the four until we have it made.  The midpoint isn't doing us a lot of good at this point so play off that.  We can't run our back checkers, if we play from the midpoint it would be foolish to volunteer a shot by leaving one behind, and every other play burries checkers.  13/7 13/9.
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Title: Re: Game 2, move 7: Herd 6-4
Post by: diane on April 18, 2012, 10:41:41 AM
Well...it is all deadlocked...and I'm too tired to pick - so will extend the voting for you to argue a bit and pick something  ;)
Title: Re: Game 2, move 7: Herd 6-4
Post by: stog on April 18, 2012, 11:10:38 AM
Spoiler
ok i have changed my vote from 9/3 6/2 to 7/1 6/2, as i too didn't want to abandon our outfield midpoint
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Title: Re: Game 2, move 7: Herd 6-4
Post by: ah_clem on April 18, 2012, 11:49:03 AM
And I forgot to vote, so now that I have it's deadlocked again.
Title: Re: Game 2, move 7: Herd 6-4
Post by: diane on April 18, 2012, 09:19:48 PM
Quote from: stog on April 18, 2012, 11:10:38 AM
Spoiler
ok i have changed my vote from 9/3 6/2 to 7/1 6/2, as i too didn't want to abandon our outfield midpoint
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I also dont want to abandon that point - so if it is still deadlocked tonight, will go with the most popular choice that doesnt do that...
Title: Re: Game 2, move 7: Herd 6-4
Post by: ah_clem on April 19, 2012, 01:32:15 AM
Spoiler

My take is that if we play off the 9 and 7 points we'll be forced to abandon the midpoint in a roll or two anyway.   Might as well do it now and prevent premature burial.

The midpoint can be a great asset, but sometimes you have to let it go. 
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Title: Re: Game 2, move 7: Herd 6-4
Post by: verystripeyzebra on April 19, 2012, 10:58:49 AM
i was more thinking of preserving 6s, so playing the 4 from the 6 point.
Title: Re: Game 2, move 7: Herd 6-4
Post by: ah_clem on April 19, 2012, 08:49:58 PM
If we're deadlocked at the close of voting, just pick one - I doubt there's more than a .04 error to be made among the three candidates.
Title: Re: Game 2, move 7: Herd 6-4
Post by: Julia_H on April 20, 2012, 11:01:19 AM
Just a few minutes too late... but if you'll allow it I'll break the deadlock by changing from 7/1 6/2 to 7/1 9/5. I think the keep-the-midpoints have it, in any case.
Title: Re: Game 2, move 7: Herd 6-4
Post by: diane on April 20, 2012, 11:12:39 AM
Quote from: Julia_H on April 20, 2012, 11:01:19 AM
Just a few minutes too late... but if you'll allow it I'll break the deadlock by changing from 7/1 6/2 to 7/1 9/5. I think the keep-the-midpoints have it, in any case.


That is the move I picked - awesome  ;)
Title: Re: Game 2, move 7: Herd 6-4
Post by: ah_clem on April 20, 2012, 05:15:05 PM
rollout

Spoiler


I figured that the plays were close, but I didn't expect them to be this close.   A shaved monkey could make the right play here.


XGID=---BABCB-A--bB-b-ccd-B-a--:0:0:1:64:4:0:1:5:10


    1. XG Roller++ 13/9 13/7                    eq:-0.321
      Player:   34.06% (G:2.00% B:0.04%)
      Opponent: 65.94% (G:2.27% B:0.04%)

    2. XG Roller++ 9/5 7/1                      eq:-0.321
      Player:   34.08% (G:2.02% B:0.02%)
      Opponent: 65.92% (G:2.61% B:0.07%)

    3. XG Roller++ 7/1 6/2                      eq:-0.322 (-0.001)
      Player:   34.08% (G:1.94% B:0.02%)
      Opponent: 65.92% (G:2.76% B:0.10%)

    4. XG Roller++ 9/3 6/2                      eq:-0.323 (-0.002)
      Player:   34.01% (G:1.97% B:0.02%)
      Opponent: 65.99% (G:2.63% B:0.06%)

    5. XG Roller++ 7/3 7/1                      eq:-0.328 (-0.007)
      Player:   33.75% (G:2.06% B:0.03%)
      Opponent: 66.25% (G:2.78% B:0.08%)


eXtreme Gammon Version: 2.03, MET: Kazaross XG2





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