• Lots of choices

    From Timothy Chow@21:1/5 to All on Wed Feb 23 08:27:08 2022
    XGID=-BBBBbBA----cBA--bAdaba---:0:0:1:44:0:0:0:0:10

    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-+
    | X X O X | | O O O O |
    | X O | | O O |
    | | | O |
    | | | O |
    | | | |
    | |BAR| |
    | | | |
    | | | |
    | O | | |
    | O | | X O X X X X |
    | O X | | X O X X X X |
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 97 O: 135 X-O: 0-0
    Cube: 1
    X to play 44

    ---
    Tim Chow

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Timothy Chow@21:1/5 to All on Fri Feb 25 09:35:03 2022
    XGID=-BBBBbBA----cBA--bAdaba---:0:0:1:44:0:0:0:0:10

    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-+
    | X X O X | | O O O O |
    | X O | | O O |
    | | | O |
    | | | O |
    | | | |
    | |BAR| |
    | | | |
    | | | |
    | O | | |
    | O | | X O X X X X |
    | O X | | X O X X X X |
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 97 O: 135 X-O: 0-0
    Cube: 1
    X to play 44

    X's huge advantage in board strength allow him to play boldly, but
    sorting through all the possibilities here is a challenge. Let me
    focus on comparing just two plays: assuming X plays 18/10 13/9,
    should he then play 14/10 or 13/9 with the last 4? To figure this
    out, it is not enough to count how many rolls allow X to hit; we
    have to assess the quality of these hits and whether X will even
    dare to hit. After 14/10, for example, XG does not hit if O rolls
    62 or 41, but after 13/9, XG will hit with 62 or 51. X's 10pt after
    14/10 is a better "guard" (against O breaking anchor to hit) than
    X's 9pt after 13/9. The duplication of 2's after 13/9 is less
    significant than the duplication of aces after 14/10.

    1. Rollout¹ 18/10 14/10 13/9 eq:+0.595
    Player: 65.96% (G:11.90% B:0.27%)
    Opponent: 34.04% (G:6.13% B:0.27%)
    Confidence: ±0.013 (+0.582..+0.608) - [100.0%]

    2. Rollout¹ 18/6 14/10 eq:+0.557 (-0.038)
    Player: 66.84% (G:8.21% B:0.13%)
    Opponent: 33.16% (G:3.94% B:0.12%)
    Confidence: ±0.010 (+0.547..+0.568) - [0.0%]

    3. Rollout¹ 18/10 13/9(2) eq:+0.446 (-0.149)
    Player: 62.15% (G:14.20% B:0.28%)
    Opponent: 37.85% (G:7.21% B:0.34%)
    Confidence: ±0.011 (+0.435..+0.457) - [0.0%]

    4. Rollout¹ 18/10 14/10 7/3 eq:+0.442 (-0.154)
    Player: 62.84% (G:9.23% B:0.19%)
    Opponent: 37.16% (G:4.63% B:0.15%)
    Confidence: ±0.012 (+0.430..+0.454) - [0.0%]

    5. Rollout¹ 18/14 13/9(2) 7/3 eq:+0.435 (-0.160)
    Player: 62.41% (G:9.48% B:0.17%)
    Opponent: 37.59% (G:4.88% B:0.16%)
    Confidence: ±0.011 (+0.425..+0.446) - [0.0%]

    6. Rollout¹ 14/6 13/9(2) eq:+0.393 (-0.203)
    Player: 60.12% (G:16.79% B:0.20%)
    Opponent: 39.88% (G:5.41% B:0.16%)
    Confidence: ±0.012 (+0.381..+0.404) - [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

    ---
    Tim Chow

    --- SoupGate-Win32 v1.05
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