• Too many 5's

    From Timothy Chow@21:1/5 to All on Fri Feb 3 10:14:01 2023
    XGID=a--BBBBBB-a-a----bbbbbAbB-:1:1:1:55:0:0:0:0:10

    Score is X:0 O:0. Unlimited Game
    +13-14-15-16-17-18------19-20-21-22-23-24-+
    | O O | | O O O X O X |
    | O O | | O O O O X |
    | | | |
    | | | |
    | | | |
    | |BAR| |
    | | O | |
    | | | |
    | | | | +---+
    | X X | | X X X X | | 2 |
    | O O X X | | X X X X | +---+
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 136 O: 117 X-O: 0-0
    Cube: 2, X own cube
    X to play 55

    ---
    Tim Chow

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From ah....Clem@21:1/5 to Timothy Chow on Fri Feb 3 20:50:13 2023
    On 2/3/2023 10:14 AM, Timothy Chow wrote:
    XGID=a--BBBBBB-a-a----bbbbbAbB-:1:1:1:55:0:0:0:0:10

    Score is X:0 O:0. Unlimited Game
     +13-14-15-16-17-18------19-20-21-22-23-24-+
     |             O  O |   | O  O  O  X  O  X |
     |             O  O |   | O  O  O     O  X |
     |                  |   |                  |
     |                  |   |                  |
     |                  |   |                  |
     |                  |BAR|                  |
     |                  | O |                  |
     |                  |   |                  |
     |                  |   |                  | +---+
     |             X  X |   | X  X  X  X       | | 2 |
     | O     O     X  X |   | X  X  X  X       | +---+
     +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count  X: 136  O: 117 X-O: 0-0
    Cube: 2, X own cube
    X to play 55

    Unless there's something I'm not seeing, making the deuce point followed
    by either stacking four checkers on the three point or switching points
    from the six to the ace. Neither are very appetizing.

    6/1 8/3 after making the deuce? A bot play for sure, but I doubt I'd
    even consider it otb.

    The point switching play gives X a few more rolls before crunching so
    I'll go with that. Without much confidence.

    7/2(2) 6/1(2).

    --
    Ah....Clem
    The future is fun, the future is fair.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Timothy Chow@21:1/5 to All on Sun Feb 5 08:36:16 2023
    XGID=a--BBBBBB-a-a----bbbbbAbB-:1:1:1:55:0:0:0:0:10

    Score is X:0 O:0. Unlimited Game
    +13-14-15-16-17-18------19-20-21-22-23-24-+
    | O O | | O O O X O X |
    | O O | | O O O O X |
    | | | |
    | | | |
    | | | |
    | |BAR| |
    | | O | |
    | | | |
    | | | | +---+
    | X X | | X X X X | | 2 |
    | O O X X | | X X X X | +---+
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 136 O: 117 X-O: 0-0
    Cube: 2, X own cube
    X to play 55

    Usually, in a priming battle, one tries to keep one's prime as long
    as possible; in particular, one tried to avoid making the 1pt. But
    here, X's timing is so bad that he has to accept that he can't hold
    his prime. Instead, he has to switch to damage control.

    If O were close to cracking herself, then X could venture 8/3(2) 7/2(2)
    (see variant below).

    1. Rollout¹ 7/2(2) 6/1(2) eq:-0.661
    Player: 21.26% (G:8.04% B:0.16%)
    Opponent: 78.74% (G:21.70% B:1.17%)
    Confidence: ±0.008 (-0.669..-0.653) - [100.0%]

    2. Rollout¹ 8/3(2) 7/2(2) eq:-0.757 (-0.096)
    Player: 19.17% (G:6.49% B:0.19%)
    Opponent: 80.83% (G:25.30% B:1.59%)
    Confidence: ±0.007 (-0.763..-0.750) - [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--BBBBBB--------bbdbbAbB-:1:1:1:55:0:0:0:0:10

    Score is X:0 O:0. Unlimited Game
    +13-14-15-16-17-18------19-20-21-22-23-24-+
    | O O | | O O O X O X |
    | O O | | O O O O X |
    | | | O |
    | | | O |
    | | | |
    | |BAR| |
    | | O | |
    | | | |
    | | | | +---+
    | X X | | X X X X | | 2 |
    | X X | | X X X X | +---+
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 136 O: 101 X-O: 0-0
    Cube: 2, X own cube
    X to play 55

    1. Rollout¹ 8/3(2) 7/2(2) eq:-0.806
    Player: 18.42% (G:2.68% B:0.09%)
    Opponent: 81.58% (G:24.38% B:1.59%)
    Confidence: ±0.006 (-0.812..-0.799) - [89.4%]

    2. Rollout¹ 7/2(2) 6/1(2) eq:-0.811 (-0.005)
    Player: 16.72% (G:1.27% B:0.01%)
    Opponent: 83.28% (G:19.95% B:0.97%)
    Confidence: ±0.005 (-0.815..-0.806) - [10.6%]

    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)