• Run?

    From Timothy Chow@21:1/5 to All on Sun Apr 24 08:43:17 2022
    XGID=--ABcBDBB---a------bbbcbB-:1:1:1:65:0:0:0:0:10

    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 O O O X |
    | | | O O O O O X |
    | | | O |
    | | | |
    | | | |
    | |BAR| |
    | | | |
    | | | X |
    | | | X O | +---+
    | X X | | X X O X | | 2 |
    | O X X | | X X O X X | +---+
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 120 O: 119 X-O: 0-0
    Cube: 2, X own cube
    X to play 65

    ---
    Tim Chow

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Timothy Chow@21:1/5 to All on Wed Apr 27 08:51:35 2022
    XGID=--ABcBDBB---a------bbbcbB-:1:1:1:65:0:0:0:0:10

    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 O O O X |
    | | | O O O O O X |
    | | | O |
    | | | |
    | | | |
    | |BAR| |
    | | | |
    | | | X |
    | | | X O | +---+
    | X X | | X X O X | | 2 |
    | O X X | | X X O X X | +---+
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 120 O: 119 X-O: 0-0
    Cube: 2, X own cube
    X to play 65

    I played 24/13 here. Maybe someone can explain to me the difference
    between this position and the variant below.

    1. Rollout¹ 24/18 6/1 eq:-0.436
    Player: 33.50% (G:8.67% B:0.28%)
    Opponent: 66.50% (G:30.70% B:1.29%)
    Confidence: ±0.008 (-0.445..-0.428) - [100.0%]
    Duration: 2 minutes 15 seconds

    2. Rollout¹ 24/13 eq:-0.507 (-0.071)
    Player: 30.39% (G:7.09% B:0.26%)
    Opponent: 69.61% (G:29.10% B:0.89%)
    Confidence: ±0.008 (-0.515..-0.499) - [0.0%]

    3. Rollout¹ 7/2 7/1 eq:-0.640 (-0.204)
    Player: 23.60% (G:5.13% B:0.11%)
    Opponent: 76.40% (G:23.46% B:0.81%)
    Confidence: ±0.006 (-0.645..-0.634) - [0.0%]

    4. Rollout¹ 8/3 8/2 eq:-0.655 (-0.219)
    Player: 22.72% (G:4.76% B:0.13%)
    Opponent: 77.28% (G:22.38% B:0.73%)
    Confidence: ±0.007 (-0.662..-0.648) - [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=--ABcBDBB---a------bbcbbB-:1:1:1:65:0:0:0:0:10

    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 O O O X |
    | | | O O O O O X |
    | | | O |
    | | | |
    | | | |
    | |BAR| |
    | | | |
    | | | X |
    | | | X O | +---+
    | X X | | X X O X | | 2 |
    | O X X | | X X O X X | +---+
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 120 O: 120 X-O: 0-0
    Cube: 2, X own cube
    X to play 65

    1. Rollout¹ 24/13 eq:-0.500
    Player: 30.65% (G:6.74% B:0.26%)
    Opponent: 69.35% (G:28.23% B:0.85%)
    Confidence: ±0.008 (-0.508..-0.492) - [100.0%]

    2. Rollout¹ 24/18 6/1 eq:-0.551 (-0.051)
    Player: 30.37% (G:7.69% B:0.24%)
    Opponent: 69.63% (G:33.80% B:1.47%)
    Confidence: ±0.010 (-0.561..-0.542) - [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
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Timothy Chow@21:1/5 to All on Wed Jan 25 08:52:48 2023
    XGID=-Ba-AbEC-----C-b-b-bbbbA--:1:1:1:54:0:0:0:0:10

    Score is X:0 O:0. Unlimited Game
    +13-14-15-16-17-18------19-20-21-22-23-24-+
    | X O O | | O O O O X |
    | X O O | | O O O O |
    | X | | |
    | | | |
    | | | |
    | |BAR| |
    | | | X |
    | | | X |
    | X | | X | +---+
    | X | | X O X | | 2 |
    | X | | X O X O X | +---+
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 119 O: 135 X-O: 0-0
    Cube: 2, X own cube
    X to play 54

    ---
    Tim Chow

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From pepstein5@gmail.com@21:1/5 to Tim Chow on Wed Jan 25 16:19:43 2023
    On Wednesday, January 25, 2023 at 1:52:49 PM UTC, Tim Chow wrote:
    XGID=-Ba-AbEC-----C-b-b-bbbbA--:1:1:1:54:0:0:0:0:10

    Score is X:0 O:0. Unlimited Game
    +13-14-15-16-17-18------19-20-21-22-23-24-+
    | X O O | | O O O O X |
    | X O O | | O O O O |
    | X | | |
    | | | |
    | | | |
    | |BAR| |
    | | | X |
    | | | X |
    | X | | X | +---+
    | X | | X O X | | 2 |
    | X | | X O X O X | +---+
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 119 O: 135 X-O: 0-0
    Cube: 2, X own cube
    X to play 54

    ---
    Tim Chow

    Yes, in my opinion.
    Not at all a QF play but I would run with 23/14 looking forward to a cube turn if the opponent fails
    to hit a blot.
    I'd love to know why such an obvious play is wrong (which it must be or you wouldn't post it).

    Paul

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Timothy Chow@21:1/5 to All on Sat Jan 28 09:55:12 2023
    XGID=-Ba-AbEC-----C-b-b-bbbbA--:1:1:1:54:0:0:0:0:10

    Score is X:0 O:0. Unlimited Game
    +13-14-15-16-17-18------19-20-21-22-23-24-+
    | X O O | | O O O O X |
    | X O O | | O O O O |
    | X | | |
    | | | |
    | | | |
    | |BAR| |
    | | | X |
    | | | X |
    | X | | X | +---+
    | X | | X O X | | 2 |
    | X | | X O X O X | +---+
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 119 O: 135 X-O: 0-0
    Cube: 2, X own cube
    X to play 54

    XG says that 23/14 is the DMP play but loses too many gammons.

    PoH doesn't solve either of X's two major problems (his two blots)
    and is way behind in the rollout.

    1. Rollout¹ 13/4 eq:-0.202
    Player: 37.04% (G:8.50% B:0.19%)
    Opponent: 62.96% (G:16.57% B:0.47%)
    Confidence: ±0.006 (-0.209..-0.196) - [100.0%]

    2. Rollout¹ 23/14 eq:-0.266 (-0.063)
    Player: 38.84% (G:5.68% B:0.20%)
    Opponent: 61.16% (G:25.98% B:0.66%)
    Confidence: ±0.006 (-0.272..-0.259) - [0.0%]

    3. Rollout¹ 7/2* 6/2 eq:-0.430 (-0.228)
    Player: 32.39% (G:7.57% B:0.13%)
    Opponent: 67.61% (G:26.38% B:0.74%)
    Confidence: ±0.009 (-0.439..-0.422) - [0.0%]

    ¹ 1296 Games rolled with Variance Reduction.
    Dice Seed: 271828
    Moves: 4-ply, cube decisions: XG Roller+
    Search interval: Large

    eXtreme Gammon Version: 2.19.211.pre-release

    ---
    DMP
    ---

    XGID=-Ba-AbEC-----C-b-b-bbbbA--:0:0:1:54:0:0:0:1:10

    Score is X:0 O:0 1 pt.(s) match.
    +13-14-15-16-17-18------19-20-21-22-23-24-+
    | X O O | | O O O O X |
    | X O O | | O O O O |
    | X | | |
    | | | |
    | | | |
    | |BAR| |
    | | | X |
    | | | X |
    | X | | X |
    | X | | X O X |
    | X | | X O X O X |
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 119 O: 135 X-O: 0-0/1
    Cube: 1
    X to play 54

    1. Rollout¹ 23/14 eq:-0.245
    Player: 37.77% (G:8.91% B:0.27%)
    Opponent: 62.23% (G:22.56% B:2.15%)
    Confidence: ±0.005 (-0.249..-0.240) - [100.0%]

    2. Rollout¹ 13/4
  • From Timothy Chow@21:1/5 to All on Thu May 18 08:39:09 2023
    XGID=-b---BE-C---eC---a-cbb--B-:0:0:1:64:0:0:0:0:10

    Score is X:0 O:0. Unlimited Game
    +13-14-15-16-17-18------19-20-21-22-23-24-+
    | X O | | O O O X |
    | X | | O O O X |
    | X | | O |
    | | | |
    | | | |
    | |BAR| |
    | O | | X |
    | O | | X |
    | O X | | X |
    | 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: 157 X-O: 0-0
    Cube: 1
    X to play 64

    ---
    Tim Chow

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Timothy Chow@21:1/5 to All on Sat May 20 09:47:12 2023
    XGID=-b---BE-C---eC---a-cbb--B-:0:0:1:64:0:0:0:0:10

    Score is X:0 O:0. Unlimited Game
    +13-14-15-16-17-18------19-20-21-22-23-24-+
    | X O | | O O O X |
    | X | | O O O X |
    | X | | O |
    | | | |
    | | | |
    | |BAR| |
    | O | | X |
    | O | | X |
    | O X | | X |
    | 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: 157 X-O: 0-0
    Cube: 1
    X to play 64

    I didn't run because I was afraid of getting hit, and 8/2 6/2 seemed to
    be a constructive alternative. But X is ahead in the race and O does
    not have much material in the zone for attacking. See the variant for comparison.

    1. Rollout¹ 24/14 eq:-0.130
    Player: 47.14% (G:14.61% B:0.94%)
    Opponent: 52.86% (G:17.65% B:0.71%)
    Confidence: ±0.013 (-0.144..-0.117) - [100.0%]

    2. Rollout¹ 8/2 6/2 eq:-0.227 (-0.096)
    Player: 44.05% (G:15.63% B:1.28%)
    Opponent: 55.95% (G:19.31% B:1.10%)
    Confidence: ±0.014 (-0.241..-0.213) - [0.0%]

    3. Rollout¹ 24/18 13/9 eq:-0.339 (-0.208)
    Player: 42.78% (G:13.87% B:0.91%)
    Opponent: 57.22% (G:22.05% B:1.26%)
    Confidence: ±0.015 (-0.353..-0.324) - [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=-b---BE-C---dC---a-ccb--B-:0:0:1:64:0:0:0:0:10

    Score is X:0 O:0. Unlimited Game
    +13-14-15-16-17-18------19-20-21-22-23-24-+
    | X O | | O O O X |
    | X | | O O O X |
    | X | | O O |
    | | | |
    | | | |
    | |BAR| |
    | | | X |
    | O | | X |
    | O X | | X |
    | 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: 149 X-O: 0-0
    Cube: 1
    X to play 64

    1. Rollout¹ 8/2 6/2 eq:-0.275
    Player: 43.32% (G:14.82% B:0.90%)
    Opponent: 56.68% (G:20.78% B:1.19%)
    Confidence: ±0.010 (-0.284..-0.265) - [84.1%]

    2. Rollout¹ 24/14 eq:-0.282 (-0.007)
    Player: 44.68% (G:12.63% B:0.81%)
    Opponent: 55.32% (G:22.38% B:0.69%)
    Confidence: ±0.011 (-0.293..-0.271) - [15.9%]

    ¹ 2592 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)