• Racing cube at 3-away/5-away

    From Timothy Chow@21:1/5 to All on Sat May 27 09:53:06 2023
    XGID=-B-BA------------------bc-:1:1:1:00:4:2:0:7:10

    Score is X:4 O:2 7 pt.(s) match.
    +13-14-15-16-17-18------19-20-21-22-23-24-+
    | | | O O |
    | | | O O |
    | | | O |
    | | | |
    | | | |
    | |BAR| |
    | | | |
    | | | |
    | | | | +---+
    | | | X X | | 2 |
    | | | X X X | +---+
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 12 O: 7 X-O: 4-2/7
    Cube: 2, X own cube
    X on roll, cube action

    ---
    Tim Chow

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Timothy Chow@21:1/5 to All on Mon May 29 14:12:23 2023
    XGID=-B-BA------------------bc-:1:1:1:00:4:2:0:7:10

    Score is X:4 O:2 7 pt.(s) match.
    +13-14-15-16-17-18------19-20-21-22-23-24-+
    | | | O O |
    | | | O O |
    | | | O |
    | | | |
    | | | |
    | |BAR| |
    | | | |
    | | | |
    | | | | +---+
    | | | X X | | 2 |
    | | | X X X | +---+
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 12 O: 7 X-O: 4-2/7
    Cube: 2, X own cube
    X on roll, cube action

    Of course this is a massive redouble for money. It's not quite a
    three-roll position, but it turns out to be a pass for money.

    At this score, however, it's a different story. Even if it were
    a pure three-roll position, it would be NRD/T. With a pure three-
    roll position, 5/6 of the time, O rolls non-doublets, which
    loses X's market if X doesn't redouble now. With so many market
    losers, you might think it would have to be a redouble, but X gains
    hardly any MWC by redoubling; if he redoubles now, then he winds up
    with 86% MWC in such situations (or 100% if he is lucky enough to
    roll doublets immediately), but if he doesn't redouble the he
    just cashes, for 84% MWC. By contrast, if he rolls non-doublets
    and O rolls doublets, then he will massively regret redoubling.

    Analyzed in Rollout
    No redouble
    Player Winning Chances: 75.56% (G:0.00% B:0.00%)
    Opponent Winning Chances: 24.44% (G:0.00% B:0.00%)
    Redouble/Take
    Player Winning Chances: 75.56% (G:0.00% B:0.00%)
    Opponent Winning Chances: 24.44% (G:0.00% B:0.00%)

    Cubeful Equities:
    No redouble: +0.719
    Redouble/Take: +0.496 (-0.223)
    Redouble/Pass: +1.000 (+0.281)

    Best Cube action: No redouble / Take
    Percentage of wrong pass needed to make the double decision right: 44.3%

    Rollout:
    1296 Games rolled with Variance Reduction.
    Dice Seed: 271828
    Moves and cube decisions: XG Roller++
    Search interval: Gigantic
    Confidence No Double: ± 0.000 (+0.719..+0.719)
    Confidence Double: ± 0.000 (+0.496..+0.496)

    eXtreme Gammon Version: 2.19.211.pre-release, MET: Kazaross XG2

    -----
    Money
    -----

    XGID=-B-BA------------------bc-:1:1:1:00:0:0:0:0:10

    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 |
    | | | |
    | | | |
    | |BAR| |
    | | | |
    | | | |
    | | | | +---+
    | | | X X | | 2 |
    | | | X X X | +---+
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 12 O: 7 X-O: 0-0
    Cube: 2, X own cube
    X on roll, cube action

    Analyzed in Rollout
    No redouble
    Player Winning Chances: 75.56% (G:0.00% B:0.00%)
    Opponent Winning Chances: 24.44% (G:0.00% B:0.00%)
    Redouble/Take
    Player Winning Chances: 75.56% (G:0.00% B:0.00%)
    Opponent Winning Chances: 24.44% (G:0.00% B:0.00%)

    Cubeful Equities:
    No redouble: +0.740 (-0.260)
    Redouble/Take: +1.021 (+0.021)
    Redouble/Pass: +1.000

    Best Cube action: Redouble / Pass

    Rollout:
    1296 Games rolled with Variance Reduction.
    Dice Seed: 271828
    Moves and cube decisions: XG Roller++
    Search interval: Gigantic
    Confidence No Double: ± 0.000 (+0.740..+0.740)
    Confidence Double: ± 0.000 (+1.021..+1.021)

    eXtreme Gammon Version: 2.19.211.pre-release

    ---
    Tim Chow

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Axel Reichert@21:1/5 to Timothy Chow on Mon May 29 19:50:24 2023
    Timothy Chow <tchow12000@yahoo.com> writes:

    XGID=-B-BA------------------bc-:1:1:1:00:4:2:0:7:10

    Score is X:4 O:2 7 pt.(s) match.
    +13-14-15-16-17-18------19-20-21-22-23-24-+
    | | | O O |
    | | | O O |
    | | | O |
    | | | |
    | | | |
    | |BAR| |
    | | | |
    | | | |
    | | | | +---+
    | | | X X | | 2 |
    | | | X X X | +---+
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 12 O: 7 X-O: 4-2/7
    Cube: 2, X own cube
    X on roll, cube action

    After a take it is an automatic redouble with the match on the line for
    both, so the take point for her is about 15 per cent and my cash point
    is 85 per cent.

    Isight method gives 12 versus 7 + 1 (for the gap on 4) + 2 (for the
    stack on 1) adjusted pips and an estimated winning chance for the game
    of

    80 - 12/3 + (10 - 12)*2 = 72 per cent

    This seems to be too far away from my cash point, so it is ND/T for me.

    Best regards

    Axel

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