• A predictable surprise

    From peps...@gmail.com@pepstein5@gmail.com to rec.games.backgammon on Wed Feb 7 10:17:58 2024
    From Newsgroup: rec.games.backgammon

    I really was quite surprised by XG's take here which is why I
    rolled it out. The take is vindicated but it's extremely close,
    so my surprise wasn't far wrong.
    XG was vindicated by my terrible next shake of 53 but
    I won the game anyway.
    This money session against XG should impress both Tim
    and Murat. After 4 games I'm leading by 6 points (12-6)
    and with a PR of 3.74.
    If I meet a random person who has played backgammon
    and knows the rules, and I play an 11 point match against
    them, I think the probability of me winning is > 99.99% but
    I'm not sure.
    Paul
    XGID=aCCDBB--------A-------ced-:1:1:1:00:8:6:3:0:10
    X:Daniel O:XG Roller+
    Score is X:8 O:6. Unlimited Game, Jacoby Beaver
    +13-14-15-16-17-18------19-20-21-22-23-24-+
    | X | | O O O |
    | | | O O O |
    | | | O O O |
    | | | O O |
    | | | O |
    | |BAR| |
    | | O | |
    | | | X |
    | | | X X X | +---+
    | | | X X X X X | | 2 |
    | | | X X X X X | +---+
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 53 O: 48 X-O: 8-6
    Cube: 2, X own cube
    X on roll, cube action
    Analyzed in Rollout
    No redouble
    Player Winning Chances: 78.09% (G:0.00% B:0.00%)
    Opponent Winning Chances: 21.91% (G:0.02% B:0.00%)
    Redouble/Take
    Player Winning Chances: 78.21% (G:0.00% B:0.00%)
    Opponent Winning Chances: 21.79% (G:0.01% B:0.00%)
    Cubeless Equities: No Double=+0.562, Double=+1.128
    Cubeful Equities:
    No redouble: +0.785 (-0.202)
    Redouble/Take: +0.987
    Redouble/Pass: +1.000 (+0.013)
    Best Cube action: Redouble / Take
    Rollout:
    5184 Games rolled with Variance Reduction.
    Moves: 3-ply, cube decisions: XG Roller
    Confidence No Double: -# 0.002 (+0.783..+0.787)
    Confidence Double: -# 0.004 (+0.984..+0.991)
    Double Decision confidence: 100.0%
    Take Decision confidence: 100.0%
    Duration: 5.2 seconds
    eXtreme Gammon Version: 2.10
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