• Hit 2? 3

    From Timothy Chow@21:1/5 to All on Mon May 9 08:54:34 2022
    XGID=-a--C-E-CaA-d-----bcBb-bA-:0:0:1:51:0:0:0:0:10

    X:Player 1 O:Player 2
    Score is X:0 O:0. Unlimited Game
    +13-14-15-16-17-18------19-20-21-22-23-24-+
    | O | | O X O O X |
    | O | | O X O O |
    | | | O |
    | | | |
    | | | |
    | |BAR| |
    | | | X |
    | O | | X |
    | O X | | X X |
    | O X | | X X |
    | O X O X | | X X O |
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 140 O: 136 X-O: 0-0
    Cube: 1
    X to play 51

    ---
    Tim Chow

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Timothy Chow@21:1/5 to All on Wed May 11 09:21:19 2022
    XGID=-a--C-E-CaA-d-----bcBb-bA-:0:0:1:51:0:0:0:0:10

    X:Player 1 O:Player 2
    Score is X:0 O:0. Unlimited Game
    +13-14-15-16-17-18------19-20-21-22-23-24-+
    | O | | O X O O X |
    | O | | O X O O |
    | | | O |
    | | | |
    | | | |
    | |BAR| |
    | | | X |
    | O | | X |
    | O X | | X X |
    | O X | | X X |
    | O X O X | | X X O |
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 140 O: 136 X-O: 0-0
    Cube: 1
    X to play 51

    The primary alternative to the double hit is to just make the 5pt. But
    XG says that making the 5pt is a whopper. Evidently, making the 5pt
    does not do a good enough job of containing O's straggler. See the
    variant for comparison.

    1. Rollout¹ 10/9* 6/1* eq:+0.193
    Player: 52.16% (G:23.27% B:0.43%)
    Opponent: 47.84% (G:12.06% B:0.58%)
    Confidence: ±0.016 (+0.177..+0.209) - [100.0%]

    2. Rollout¹ 10/5 6/5 eq:+0.085 (-0.108)
    Player: 50.28% (G:15.47% B:0.33%)
    Opponent: 49.72% (G:6.78% B:0.34%)
    Confidence: ±0.013 (+0.073..+0.098) - [0.0%]

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

    eXtreme Gammon Version: 2.19.207.pre-release

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

    XGID=-a--C-EBAaA-d-----bcBb-bA-:0:0:1:51:0:0:0:0:10

    X:Player 1 O:Player 2
    Score is X:0 O:0. Unlimited Game
    +13-14-15-16-17-18------19-20-21-22-23-24-+
    | O | | O X O O X |
    | O | | O X O O |
    | | | O |
    | | | |
    | | | |
    | |BAR| |
    | | | X |
    | O | | X |
    | O | | X X |
    | O X | | X X |
    | O X O X X | | X X O |
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 138 O: 136 X-O: 0-0
    Cube: 1
    X to play 51

    1. Rollout¹ 10/5 6/5 eq:+0.331
    Player: 56.15% (G:20.18% B:0.45%)
    Opponent: 43.85% (G:7.77% B:0.30%)
    Confidence: ±0.007 (+0.324..+0.338) - [100.0%]

    2. Rollout¹ 10/9* 6/1* eq:+0.301 (-0.030)
    Player: 54.00% (G:27.37% B:0.46%)
    Opponent: 46.00% (G:13.73% B:0.82%)
    Confidence: ±0.008 (+0.293..+0.309) - [0.0%]

    ¹ 5184 Games rolled with Variance Reduction.
    Dice Seed: 271828
    Moves: 3-ply, cube decisions: XG Roller

    eXtreme Gammon Version: 2.19.207.pre-release

    ---
    Tim Chow

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