• Make the 4pt?

    From Timothy Chow@21:1/5 to All on Sat Dec 23 09:04:21 2023
    XGID=--a---DACBA-c--b-c-cCc-A--:0:0:1:62:0:0:0:0:10

    Score is X:0 O:0. Unlimited Game
    +13-14-15-16-17-18------19-20-21-22-23-24-+
    | O O | | O X O X |
    | O O | | O X O |
    | O | | O X O |
    | | | |
    | | | |
    | |BAR| |
    | | | |
    | | | X |
    | O X | | X |
    | O X X | | X |
    | O X X X X | | X O |
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 166 O: 136 X-O: 0-0
    Cube: 1
    X to play 62

    ---
    Tim Chow

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Timothy Chow@21:1/5 to All on Mon Dec 25 11:12:58 2023
    XGID=--a---DACBA-c--b-c-cCc-A--:0:0:1:62:0:0:0:0:10

    Score is X:0 O:0. Unlimited Game
    +13-14-15-16-17-18------19-20-21-22-23-24-+
    | O O | | O X O X |
    | O O | | O X O |
    | O | | O X O |
    | | | |
    | | | |
    | |BAR| |
    | | | |
    | | | X |
    | O X | | X |
    | O X X | | X |
    | O X X X X | | X O |
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 166 O: 136 X-O: 0-0
    Cube: 1
    X to play 62

    The main alternative to making the 4pt is to cover the bar point and
    jump a back checker out. This might seem to be a close decision, but
    XG says it's not. It would be a different story if there were no good jumping-out play (see variant).

    1. Rollout¹ 20/14 9/7 eq:-0.394
    Player: 41.32% (G:8.77% B:0.42%)
    Opponent: 58.68% (G:18.60% B:0.77%)
    Confidence: ±0.016 (-0.410..-0.378) - [100.0%]

    2. Rollout¹ 10/4 6/4 eq:-0.490 (-0.096)
    Player: 38.38% (G:8.14% B:0.32%)
    Opponent: 61.62% (G:17.03% B:0.51%)
    Confidence: ±0.015 (-0.506..-0.475) - [0.0%]

    ¹ 1296 Games rolled with Variance Reduction.
    Dice Seed: 271828
    Moves: 3-ply, cube decisions: XG Roller

    eXtreme Gammon Version: 2.19.211.pre-release

    -------
    Variant
    -------

    XGID=--a---DACBA-c--b-c-cBcAA--:0:0:1:62:0:0:0:0:10

    Score is X:0 O:0. Unlimited Game
    +13-14-15-16-17-18------19-20-21-22-23-24-+
    | O O | | O X O X X |
    | O O | | O X O |
    | O | | O O |
    | | | |
    | | | |
    | |BAR| |
    | | | |
    | | | X |
    | O X | | X |
    | O X X | | X |
    | O X X X X | | X O |
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 168 O: 136 X-O: 0-0
    Cube: 1
    X to play 62

    1. Rollout¹ 22/16 9/7 eq:-0.486
    Player: 39.68% (G:8.51% B:0.38%)
    Opponent: 60.32% (G:21.66% B:0.98%)
    Confidence: ±0.017 (-0.502..-0.469) - [89.5%]

    2. Rollout¹ 10/4 6/4 eq:-0.501 (-0.015)
    Player: 38.86% (G:8.16% B:0.30%)
    Opponent: 61.14% (G:19.13% B:0.63%)
    Confidence: ±0.016 (-0.516..-0.485) - [10.5%]

    ¹ 1296 Games rolled with Variance Reduction.
    Dice Seed: 271828
    Moves: 3-ply, cube decisions: XG Roller

    eXtreme Gammon Version: 2.19.211.pre-release

    ---
    Tim Chow

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