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  • 4pt vs 5pt 5

    From Timothy Chow@21:1/5 to All on Fri Jun 16 08:15:55 2023
    XGID=--a--CC-CA-BbB---cbe-b-A--:0:0:1:21:0:0:0:0:10

    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 O |
    | O | | O |
    | | | O |
    | | | O |
    | |BAR| |
    | | | |
    | | | |
    | X | | X X |
    | O X X | | X X |
    | O X X X | | X X O |
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 137 O: 125 X-O: 0-0
    Cube: 1
    X to play 21

    ---
    Tim Chow

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Bradley K. Sherman@21:1/5 to tchow12000@yahoo.com on Fri Jun 16 13:07:29 2023
    Timothy Chow <tchow12000@yahoo.com> wrote: >XGID=--a--CC-CA-BbB---cbe-b-A--:0:0:1:21:0:0:0:0:10

    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 O |
    | O | | O |
    | | | O |
    | | | O |
    | |BAR| |
    | | | |
    | | | |
    | X | | X X |
    | O X X | | X X |
    | O X X X | | X X O |
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 137 O: 125 X-O: 0-0
    Cube: 1
    X to play 21

    I think the Subject line sould be "vs 7pt". And thanks
    for all the examples. Do you find these by memory, or
    do you keep a personal tagged database?

    --bks

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From ah....Clem@21:1/5 to Timothy Chow on Fri Jun 16 18:44:30 2023
    On 6/16/2023 8:15 AM, Timothy Chow wrote:
    XGID=--a--CC-CA-BbB---cbe-b-A--:0:0:1:21:0:0:0:0:10

    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     O          |
     |             O    |   | O                |
     |                  |   | O                |
     |                  |   | O                |
     |                  |BAR|                  |
     |                  |   |                  |
     |                  |   |                  |
     |             X    |   | X  X             |
     | O  X        X    |   | X  X             |
     | O  X     X  X    |   | X  X        O    |
     +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count  X: 137  O: 125 X-O: 0-0
    Cube: 1
    X to play 21

    I'll make the bar point to block sixes and create a solid four prime.

    Not sure I understand these positions at all...

    --
    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 Bradley K. Sherman on Sat Jun 17 08:42:32 2023
    On 6/16/2023 9:07 AM, Bradley K. Sherman wrote:

    I think the Subject line sould be "vs 7pt".

    LOL. Yes!

    Do you find these by memory, or
    do you keep a personal tagged database?

    They're in a database. Or rather, I have a large collection of
    positions arranged into folders and subfolders. I have a folder
    for the 4pt and a subfolder for the 7pt.

    ---
    Tim Chow

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Timothy Chow@21:1/5 to All on Sun Jun 18 09:28:10 2023
    XGID=--a--CC-CA-BbB---cbe-b-A--:0:0:1:21:0:0:0:0:10

    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 O |
    | O | | O |
    | | | O |
    | | | O |
    | |BAR| |
    | | | |
    | | | |
    | X | | X X |
    | O X X | | X X |
    | O X X X | | X X O |
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 137 O: 125 X-O: 0-0
    Cube: 1
    X to play 21

    By now the heuristic "attack with the 4pt, prime with the 7pt" seems
    to be taking shape, but which one is this? XG makes the 4pt, which
    makes some sense since O has a blot, but see also the variant, where
    O's blot has been moved back 1 pip.

    1. Rollout¹ 6/4 5/4 eq:+0.117
    Player: 54.46% (G:12.73% B:0.53%)
    Opponent: 45.54% (G:14.91% B:0.42%)
    Confidence: ±0.014 (+0.104..+0.131) - [100.0%]

    2. Rollout¹ 9/7 8/7 eq:+0.037 (-0.080)
    Player: 51.83% (G:11.38% B:0.45%)
    Opponent: 48.17% (G:14.56% B:0.43%)
    Confidence: ±0.012 (+0.026..+0.049) - [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---CC-CA-BbB---cbe-b-A--:0:0:1:21:0:0:0:0:10

    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 O |
    | O | | O |
    | | | O |
    | | | O |
    | |BAR| |
    | | | |
    | | | |
    | X | | X X |
    | O X X | | X X |
    | O X X X | | X X O |
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 137 O: 126 X-O: 0-0
    Cube: 1
    X to play 21

    1. Rollout¹ 6/4 5/4 eq:+0.078
    Player: 53.44% (G:12.66% B:0.53%)
    Opponent: 46.56% (G:15.02% B:0.44%)
    Confidence: ±0.013 (+0.065..+0.090) - [95.5%]

    2. Rollout¹ 9/7 8/7 eq:+0.062 (-0.016)
    Player: 52.45% (G:11.57% B:0.49%)
    Opponent: 47.55% (G:14.84% B:0.42%)
    Confidence: ±0.014 (+0.048..+0.075) - [4.5%]

    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)