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  • Which point do you break?

    From Timothy Chow@tchow12000@yahoo.com to rec.games.backgammon on Tue Feb 6 09:39:18 2024
    From Newsgroup: rec.games.backgammon

    XGID=-B--bCBBB-B--------bbbbeB-: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-+
    | | | O O O O O X |
    | | | O O O O O X |
    | | | O |
    | | | O |
    | | | O |
    | |BAR| |
    | | | |
    | | | |
    | | | X | +---+
    | X X X | | X X O X | | 2 |
    | X X X | | X X O X | +---+
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 127 O: 88 X-O: 0-0
    Cube: 2, X own cube
    X to play 54

    ---
    Tim Chow
    --- Synchronet 3.21b-Linux NewsLink 1.2
  • From Timothy Chow@tchow12000@yahoo.com to rec.games.backgammon on Fri Feb 9 09:18:25 2024
    From Newsgroup: rec.games.backgammon

    XGID=-B--bCBBB-B--------bbbbeB-: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-+
    | | | O O O O O X |
    | | | O O O O O X |
    | | | O |
    | | | O |
    | | | O |
    | |BAR| |
    | | | |
    | | | |
    | | | X | +---+
    | X X X | | X X O X | | 2 |
    | X X X | | X X O X | +---+
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 127 O: 88 X-O: 0-0
    Cube: 2, X own cube
    X to play 54

    Dumping two blots into your board is generally not a good idea when
    your opponent is eager for a good opportunity to break anchor, but
    an important factor here is O's extremely inflexible position. For
    example, if X maintains his 10pt then 51 and 61 are anti-jokers
    for O.

    1. Rollout-| 7/3 7/2 eq:+0.054
    Player: 46.66% (G:11.50% B:0.42%)
    Opponent: 53.34% (G:15.50% B:0.98%)
    Confidence: -#0.009 (+0.046..+0.063) - [100.0%]

    2. Rollout-| 10/6 10/5 eq:-0.045 (-0.099)
    Player: 41.91% (G:9.08% B:0.31%)
    Opponent: 58.09% (G:13.26% B:0.58%)
    Confidence: -#0.008 (-0.053..-0.037) - [0.0%]

    -| 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--bCBBB-B--------bbcbdB-: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-+
    | | | O O O O O X |
    | | | O O O O O X |
    | | | O O |
    | | | O |
    | | | |
    | |BAR| |
    | | | |
    | | | |
    | | | X | +---+
    | X X X | | X X O X | | 2 |
    | X X X | | X X O X | +---+
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 127 O: 90 X-O: 0-0
    Cube: 2, X own cube
    X to play 54

    1. Rollout-| 10/6 10/5 eq:-0.168
    Player: 38.01% (G:8.11% B:0.27%)
    Opponent: 61.99% (G:15.01% B:0.71%)
    Confidence: -#0.008 (-0.175..-0.160) - [99.7%]

    2. Rollout-| 7/3 7/2 eq:-0.183 (-0.015)
    Player: 39.38% (G:8.69% B:0.26%)
    Opponent: 60.62% (G:18.62% B:1.46%)
    Confidence: -#0.007 (-0.190..-0.175) - [0.3%]

    -| 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
    --- Synchronet 3.21b-Linux NewsLink 1.2
  • From Stick Rice@bananaboater315@gmail.com to rec.games.backgammon on Fri Feb 9 11:24:46 2024
    From Newsgroup: rec.games.backgammon

    On Friday, February 9, 2024 at 9:18:29rC>AM UTC-5, Timothy Chow wrote:
    XGID=-B--bCBBB-B--------bbbbeB-: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-+
    | | | O O O O O X |
    | | | O O O O O X |
    | | | O |
    | | | O |
    | | | O |
    | |BAR| |
    | | | |
    | | | |
    | | | X | +---+
    | X X X | | X X O X | | 2 |
    | X X X | | X X O X | +---+
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 127 O: 88 X-O: 0-0
    Cube: 2, X own cube
    X to play 54
    Dumping two blots into your board is generally not a good idea when
    your opponent is eager for a good opportunity to break anchor, but
    an important factor here is O's extremely inflexible position. For
    example, if X maintains his 10pt then 51 and 61 are anti-jokers
    for O.

    1. Rollout-| 7/3 7/2 eq:+0.054
    Player: 46.66% (G:11.50% B:0.42%)
    Opponent: 53.34% (G:15.50% B:0.98%)
    Confidence: -#0.009 (+0.046..+0.063) - [100.0%]

    2. Rollout-| 10/6 10/5 eq:-0.045 (-0.099)
    Player: 41.91% (G:9.08% B:0.31%)
    Opponent: 58.09% (G:13.26% B:0.58%)
    Confidence: -#0.008 (-0.053..-0.037) - [0.0%]

    -| 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--bCBBB-B--------bbcbdB-: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-+
    | | | O O O O O X |
    | | | O O O O O X |
    | | | O O |
    | | | O |
    | | | |
    | |BAR| |
    | | | |
    | | | |
    | | | X | +---+
    | X X X | | X X O X | | 2 |
    | X X X | | X X O X | +---+
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 127 O: 90 X-O: 0-0
    Cube: 2, X own cube
    X to play 54
    1. Rollout-| 10/6 10/5 eq:-0.168
    Player: 38.01% (G:8.11% B:0.27%)
    Opponent: 61.99% (G:15.01% B:0.71%)
    Confidence: -#0.008 (-0.175..-0.160) - [99.7%]

    2. Rollout-| 7/3 7/2 eq:-0.183 (-0.015)
    Player: 39.38% (G:8.69% B:0.26%)
    Opponent: 60.62% (G:18.62% B:1.46%)
    Confidence: -#0.007 (-0.190..-0.175) - [0.3%]

    -| 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
    I don't think you're using anti-joker correctly.
    Stick
    --- Synchronet 3.21b-Linux NewsLink 1.2