• Make the 4pt and then...?

    From Timothy Chow@21:1/5 to All on Sat Jan 7 08:54:34 2023
    XGID=-a-B--D-C-b-cC--Ac-bB-b-b-:0:0:1:22:0:0:0:0:10

    Score is X:0 O:0. Unlimited Game
    +13-14-15-16-17-18------19-20-21-22-23-24-+
    | X X O | | O X O O |
    | X O | | O X O O |
    | X O | | |
    | | | |
    | | | |
    | |BAR| |
    | | | |
    | | | X |
    | O X | | X |
    | O O X | | X X |
    | O O X | | X X O |
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 149 O: 137 X-O: 0-0
    Cube: 1
    X to play 22

    ---
    Tim Chow

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From ah....Clem@21:1/5 to Timothy Chow on Sun Jan 8 14:38:35 2023
    On 1/7/2023 8:54 AM, Timothy Chow wrote:
    XGID=-a-B--D-C-b-cC--Ac-bB-b-b-:0:0:1:22:0:0:0:0:10

    Score is X:0 O:0. Unlimited Game
     +13-14-15-16-17-18------19-20-21-22-23-24-+
     | X        X  O    |   | O  X     O     O |
     | X           O    |   | O  X     O     O |
     | X           O    |   |                  |
     |                  |   |                  |
     |                  |   |                  |
     |                  |BAR|                  |
     |                  |   |                  |
     |                  |   | X                |
     | O           X    |   | X                |
     | O     O     X    |   | X        X       |
     | O     O     X    |   | X        X     O |
     +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count  X: 149  O: 137 X-O: 0-0
    Cube: 1


    Maybe it's better to just claim the 16 point, going even in the race and getting the runners semi-escaped while O still has a checker on the ace?

    But I'm attracted to the four point because, well, it's the four point.

    After making the four point I'll make the 16 - the straggler is pretty
    safe on the 20 point since O may be reluctant to hit loose and there
    aren't many non-loose hits. The blot on the 16 looks pretty vulnerable
    with a double shot aimed at it, so I'll cover it.

    20/16 6/4(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 Tue Jan 10 09:07:24 2023
    XGID=-a-B--D-C-b-cC--Ac-bB-b-b-:0:0:1:22:0:0:0:0:10

    Score is X:0 O:0. Unlimited Game
    +13-14-15-16-17-18------19-20-21-22-23-24-+
    | X X O | | O X O O |
    | X O | | O X O O |
    | X O | | |
    | | | |
    | | | |
    | |BAR| |
    | | | |
    | | | X |
    | O X | | X |
    | O O X | | X X |
    | O O X | | X X O |
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 149 O: 137 X-O: 0-0
    Cube: 1
    X to play 22

    I tried switching points here, but XG hates that. See the variants,
    where XG thinks that switching points is a more viable strategy.

    1. Rollout¹ 16/14 8/4 6/4 eq:+0.127
    Player: 52.18% (G:15.60% B:0.56%)
    Opponent: 47.82% (G:9.79% B:0.28%)
    Confidence: ±0.013 (+0.113..+0.140) - [100.0%]

    2. Rollout¹ 13/9 6/4(2) eq:+0.046 (-0.081)
    Player: 50.54% (G:14.16% B:0.58%)
    Opponent: 49.46% (G:10.66% B:0.28%)
    Confidence: ±0.013 (+0.033..+0.059) - [0.0%]

    3. Rollout¹ 6/4(2) 3/1*(2) eq:+0.030 (-0.096)
    Player: 49.30% (G:16.21% B:0.40%)
    Opponent: 50.70% (G:10.69% B:0.33%)
    Confidence: ±0.012 (+0.019..+0.042) - [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 1
    ---------

    XGID=-a-B--D-C-b-cC--Ac-bbB--b-:0:0:1:22:0:0:0:0:10

    Score is X:0 O:0. Unlimited Game
    +13-14-15-16-17-18------19-20-21-22-23-24-+
    | X X O | | O O X O |
    | X O | | O O X O |
    | X O | | |
    | | | |
    | | | |
    | |BAR| |
    | | | |
    | | | X |
    | O X | | X |
    | O O X | | X X |
    | O O X | | X X O |
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 151 O: 141 X-O: 0-0
    Cube: 1
    X to play 22

    1. Rollout¹ 16/14 8/4 6/4 eq:-0.152
    Player: 45.43% (G:11.95% B:0.41%)
    Opponent: 54.57% (G:10.91% B:0.33%)
    Confidence: ±0.006 (-0.159..-0.146) - [90.3%]

    2. Rollout¹ 6/4(2) 3/1*(2) eq:-0.158 (-0.006)
    Player: 45.03% (G:13.70% B:0.33%)
    Opponent: 54.97% (G:12.19% B:0.40%)
    Confidence: ±0.006 (-0.164..-0.152) - [9.7%]

    3. Rollout¹ 13/9 6/4(2) eq:-0.198 (-0.045)
    Player: 44.68% (G:11.47% B:0.43%)
    Opponent: 55.32% (G:12.42% B:0.39%)
    Confidence: ±0.006 (-0.204..-0.191) - [0.0%]

    4. Rollout² 8/4 6/4(2) eq:-0.234 (-0.082)
    Player: 43.42% (G:11.02% B:0.42%)
    Opponent: 56.58% (G:11.46% B:0.40%)
    Confidence: ±0.011 (-0.245..-0.223) - [0.0%]

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

    ² 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 2
    ---------

    XGID=-a-B--D-C-b-cC--Ac-cB-b-a-:0:0:1:22:0:0:0:0:10

    Score is X:0 O:0. Unlimited Game
    +13-14-15-16-17-18------19-20-21-22-23-24-+
    | X X O | | O X O O |
    | X O | | O X O |
    | X O | | O |
    | | | |
    | | | |
    | |BAR| |
    | | | |
    | | | X |
    | O X | | X |
    | O O X | | X X |
    | O O X | | X X O |
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 149 O: 142 X-O: 0-0
    Cube: 1
    X to play 22

    1. Rollout¹ 16/14 8/4 6/4 eq:+0.277
    Player: 55.39% (G:17.32% B:0.67%)
    Opponent: 44.61% (G:7.78% B:0.23%)
    Confidence: ±0.009 (+0.268..+0.285) - [94.9%]

    2. Rollout¹ 6/4(2) 3/1*(2) eq:+0.265 (-0.012)
    Player: 54.44% (G:20.32% B:0.46%)
    Opponent: 45.56% (G:9.30% B:0.31%)
    Confidence: ±0.011 (+0.254..+0.276) - [4.8%]

    3. Rollout² 13/11 8/4 6/4 eq:+0.254 (-0.022)
    Player: 54.96% (G:18.25% B:0.83%)
    Opponent: 45.04% (G:9.23% B:0.26%)
    Confidence: ±0.013 (+0.241..+0.267) - [0.2%]

    ¹ 2592 Games rolled with Variance Reduction.
    Dice Seed: 271828
    Moves: 3-ply, cube decisions: XG Roller

    ² 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)