• 2-away/3-away cube action

    From Timothy Chow@21:1/5 to All on Tue Feb 14 10:18:05 2023
    XGID=--c--BDBC---bB---b-bbbB-b-:0:0:1:00:5:4:0:7:10

    Score is X:5 O:4 7 pt.(s) match.
    +13-14-15-16-17-18------19-20-21-22-23-24-+
    | X O | | O O O X O |
    | X O | | O O O X O |
    | | | |
    | | | |
    | | | |
    | |BAR| |
    | | | |
    | | | X |
    | X | | X O |
    | O X X | | X X O |
    | O X X | | X X O |
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 142 O: 143 X-O: 5-4/7
    Cube: 1
    X on roll, cube action

    ---
    Tim Chow

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Timothy Chow@21:1/5 to All on Fri Feb 17 09:56:06 2023
    XGID=--c--BDBC---bB---b-bbbB-b-:0:0:1:00:5:4:0:7:10

    Score is X:5 O:4 7 pt.(s) match.
    +13-14-15-16-17-18------19-20-21-22-23-24-+
    | X O | | O O O X O |
    | X O | | O O O X O |
    | | | |
    | | | |
    | | | |
    | |BAR| |
    | | | |
    | | | X |
    | X | | X O |
    | O X X | | X X O |
    | O X X | | X X O |
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 142 O: 143 X-O: 5-4/7
    Cube: 1
    X on roll, cube action

    When there's this much contact, and in particular when the 2-away
    player wins this many gammons, it's usually not a good idea to
    kill your own gammons by doubling at 2-away/3-away. Usually, you're
    either too good or not good enough. Here, though, the rollout says
    that O is pretty close to the take/pass borderline, with barely 25%
    winning chances, and that doubling is mandatory.

    Analyzed in Rollout
    No double
    Player Winning Chances: 74.53% (G:22.45% B:2.96%)
    Opponent Winning Chances: 25.47% (G:6.77% B:0.20%)
    Double/Take
    Player Winning Chances: 74.48% (G:23.60% B:3.22%)
    Opponent Winning Chances: 25.52% (G:6.80% B:0.37%)

    Cubeful Equities:
    No double: +0.834 (-0.118)
    Double/Take: +0.952
    Double/Pass: +1.000 (+0.048)

    Best Cube action: Double / Take

    Rollout:
    1296 Games rolled with Variance Reduction.
    Dice Seed: 271828
    Moves: 3-ply, cube decisions: XG Roller
    Confidence No Double: ± 0.012 (+0.822..+0.846)
    Confidence Double: ± 0.018 (+0.934..+0.970)

    eXtreme Gammon Version: 2.19.211.pre-release, MET: Kazaross XG2

    ---
    Tim Chow

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)