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Backgammon => Fibsboard Forum Matches => FFM 7 => Topic started by: ah_clem on October 04, 2010, 11:56:08 AM

Poll
Question: 5-3 to play
 
 
Option 1: 13/8 13/10 votes: 7
Option 2: 13/5 votes: 3
Option 3: 13/8 5/2 votes: 0
Option 4: 8/5 6/1 votes: 0
Title: Game 1 Move 2 The Herd to play 5-3
Post by: ah_clem on October 04, 2010, 11:56:08 AM
Not many options here.

Position ID: mOfBAQzYZvABDA
Match ID: cImuAAAAAAAA
Title: Re: Game 1 Move 2 The Herd to play 5-3
Post by: ah_clem on October 04, 2010, 12:07:35 PM
Spoiler

Our next objective should be to make the bar point or the nine point, so moving 13/5 is anti-positional. With our anchor leaving a blot on the ten is not very risky - it's 7 points away, so it's only 1 in 9 to be hit (52 is blocked) , and if he does hit he's abandoned one of his major assets - his anchor.  13/8 13/10.


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Title: Re: Game 1 Move 2 The Herd to play 5-3
Post by: KDP on October 04, 2010, 09:36:45 PM
Spoiler
i think you have to bring 2 down.  although we get hit with 6 1and 4 3 its our best shot at making our bar point.
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Title: Re: Game 1 Move 2 The Herd to play 5-3
Post by: ah_clem on October 08, 2010, 04:11:35 AM
Catching up on a few rollouts that had been deferred due to the possibility of a cube lurking.


rollout

Spoiler
Nothing surprising here...


    1. Rollout          13/10 13/8                   Eq.:  +0.292
       0.567 0.138 0.005 - 0.433 0.091 0.004 CL  +0.198 CF  +0.292
      [0.002 0.002 0.001 - 0.002 0.001 0.001 CL   0.005 CF   0.013]

    2. Rollout          13/5                         Eq.:  +0.231 ( -0.061)
       0.548 0.132 0.005 - 0.452 0.092 0.004 CL  +0.146 CF  +0.231
      [0.002 0.002 0.001 - 0.002 0.001 0.001 CL   0.005 CF   0.011]
        Full cubeful rollout with var.redn.
        1296 games, Mersenne Twister dice gen. with seed 898618771 and quasi-random dice
        Play: 0-ply cubeful prune [expert]
        Cube: 0-ply cubeful prune [expert]


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