1. Forum
  2. Usenet
  3. REC.GAMES.BACKGAMMON

  • Flying Cars

    From Robert Zimmerman@21:1/5 to All on Tue Mar 28 13:13:21 2023
    XGID=--aBBbCB--Bb----Bc-dB--ba-:0:0:1:44:0:0:0:5:10

    Score is X:0 O:0 5 pt.(s) match.
    +13-14-15-16-17-18------19-20-21-22-23-24-+
    | X O | | O X O O |
    | X O | | O X O |
    | O | | O |
    | | | O |
    | | | |
    | |BAR| |
    | | | |
    | | | |
    | | | X |
    | O X X | | X O X X |
    | O X X | | X O X X O |
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 138 O: 144 X-O: 0-0/5
    Cube: 1
    X to play 44

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Stick Rice@21:1/5 to Robert Zimmerman on Tue Mar 28 16:07:54 2023
    On Tuesday, March 28, 2023 at 4:13:23 PM UTC-4, Robert Zimmerman wrote:
    XGID=--aBBbCB--Bb----Bc-dB--ba-:0:0:1:44:0:0:0:5:10

    Score is X:0 O:0 5 pt.(s) match.
    +13-14-15-16-17-18------19-20-21-22-23-24-+
    | X O | | O X O O |
    | X O | | O X O |
    | O | | O |
    | | | O |
    | | | |
    | |BAR| |
    | | | |
    | | | |
    | | | X |
    | O X X | | X O X X |
    | O X X | | X O X X O |
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 138 O: 144 X-O: 0-0/5
    Cube: 1
    X to play 44

    Too many valid choices to do anything other than the KISS play.

    Stick

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Timothy Chow@21:1/5 to Robert Zimmerman on Tue Mar 28 20:15:44 2023
    On 3/28/2023 4:13 PM, Robert Zimmerman wrote:
    XGID=--aBBbCB--Bb----Bc-dB--ba-:0:0:1:44:0:0:0:5:10

    Score is X:0 O:0 5 pt.(s) match.
    +13-14-15-16-17-18------19-20-21-22-23-24-+
    | X O | | O X O O |
    | X O | | O X O |
    | O | | O |
    | | | O |
    | | | |
    | |BAR| |
    | | | |
    | | | |
    | | | X |
    | O X X | | X O X X |
    | O X X | | X O X X O |
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 138 O: 144 X-O: 0-0/5
    Cube: 1
    X to play 44

    X is ahead in the pip count already, so a big roll suggests racing.
    The trouble is that no matter what X plays, there remains a lot of
    contact. I'd go ahead and attack with 10/2* 6/2. For the final 2,
    I don't see anything better than 10/6.

    ---
    Tim Chow

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Robert Zimmerman@21:1/5 to Stick Rice on Wed Mar 29 05:43:59 2023
    On Tuesday, March 28, 2023 at 7:07:55 PM UTC-4, Stick Rice wrote:
    On Tuesday, March 28, 2023 at 4:13:23 PM UTC-4, Robert Zimmerman wrote:
    XGID=--aBBbCB--Bb----Bc-dB--ba-:0:0:1:44:0:0:0:5:10

    Score is X:0 O:0 5 pt.(s) match. +13-14-15-16-17-18------19-20-21-22-23-24-+
    | X O | | O X O O |
    | X O | | O X O |
    | O | | O |
    | | | O |
    | | | |
    | |BAR| |
    | | | |
    | | | |
    | | | X |
    | O X X | | X O X X |
    | O X X | | X O X X O |
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 138 O: 144 X-O: 0-0/5
    Cube: 1
    X to play 44
    Too many valid choices to do anything other than the KISS play.

    Stick
    For a unicellular player like me you've got to keep it stupid, Stick.
    I can rephrase the problem. Find the class of plays that is better than all others. That's where I went wrong OtB.
    Bob

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Robert Zimmerman@21:1/5 to Robert Zimmerman on Thu Mar 30 09:18:07 2023
    On Tuesday, March 28, 2023 at 4:13:23 PM UTC-4, Robert Zimmerman wrote:
    XGID=--aBBbCB--Bb----Bc-dB--ba-:0:0:1:44:0:0:0:5:10

    Score is X:0 O:0 5 pt.(s) match.
    +13-14-15-16-17-18------19-20-21-22-23-24-+
    | X O | | O X O O |
    | X O | | O X O |
    | O | | O |
    | | | O |
    | | | |
    | |BAR| |
    | | | |
    | | | |
    | | | X |
    | O X X | | X O X X |
    | O X X | | X O X X O |
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 138 O: 144 X-O: 0-0/5
    Cube: 1
    X to play 44
    As Tim said, the point here is that whatever play you make, moving 2 checkers 10 pips or 2 points x 5 pips, if you're not hitting you're still facing contact. Hitting the blot strives to solve that problem.

    Bob

    XGID=--aBBbCB--Bb----Bc-dB--ba-:0:0:1:44:0:0:0:5:10

    Score is X:0 O:0 5 pt.(s) match.
    +24-23-22-21-20-19------18-17-16-15-14-13-+
    | O O X O | | O X |
    | O X O | | O X |
    | O | | O |
    | O | | |
    | | | |
    | |BAR| |
    | | | |
    | | | |
    | X | | |
    | X X O X | | X X O |
    | O X X O X | | X X O |
    +-1--2--3--4--5--6-------7--8--9-10-11-12-+
    Pip count X: 138 O: 144 X-O: 0-0/5
    Cube: 1
    X to play 44

    1. Rollout¹ 10/2*(2) eq:+0.766
    Player: 69.07% (G:14.91% B:0.36%)
    Opponent: 30.93% (G:5.17% B:0.14%)
    Confidence: ±0.008 (+0.757..+0.774) - [99.9%]
    Duration: 2 minutes 19 seconds

    2. Rollout¹ 20/16 10/2* 6/2 eq:+0.746 (-0.020)
    Player: 69.17% (G:13.69% B:0.38%)
    Opponent: 30.83% (G:5.57% B:0.16%)
    Confidence: ±0.010 (+0.736..+0.756) - [0.1%]
    Duration: 2 minutes 43 seconds

    3. Rollout¹ 16/12 10/2* 6/2 eq:+0.738 (-0.028)
    Player: 68.74% (G:14.25% B:0.40%)
    Opponent: 31.26% (G:5.54% B:0.16%)
    Confidence: ±0.009 (+0.729..+0.746) - [0.0%]
    Duration: 2 minutes 21 seconds

    4. Rollout¹ 20/12(2) eq:+0.727 (-0.039)
    Player: 71.20% (G:7.37% B:0.24%)
    Opponent: 28.80% (G:3.65% B:0.10%)
    Confidence: ±0.011 (+0.716..+0.738) - [0.0%]
    Duration: 4 minutes 59 seconds

    5. Rollout¹ 16/8(2) eq:+0.699 (-0.067)
    Player: 69.25% (G:11.68% B:0.48%)
    Opponent: 30.75% (G:5.45% B:0.17%)
    Confidence: ±0.011 (+0.688..+0.711) - [0.0%]
    Duration: 4 minutes 14 seconds


    ¹ 1296 Games rolled with Variance Reduction.
    Moves: 3-ply, cube decisions: XG Roller


    eXtreme Gammon Version: 2.10, MET: Kazaross XG2

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)