• I rolled my worst possible roll

    From Timothy Chow@21:1/5 to All on Tue Nov 29 08:48:29 2022
    XGID=--BBa-Db---B-D---bbdAc--a-:0:0:1:31:0:0:0:0:10

    Score is X:0 O:0. Unlimited Game
    +13-14-15-16-17-18------19-20-21-22-23-24-+
    | X O O | | O X O O |
    | X O O | | O O |
    | X | | O O |
    | X | | O |
    | | | |
    | |BAR| |
    | | | |
    | | | X |
    | | | X |
    | X O | | X X X |
    | X O | | X O X X |
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 128 O: 124 X-O: 0-0
    Cube: 1
    X to play 31

    ---
    Tim Chow

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From pepstein5@gmail.com@21:1/5 to Tim Chow on Tue Nov 29 06:46:33 2022
    On Tuesday, November 29, 2022 at 1:48:30 PM UTC, Tim Chow wrote:
    XGID=--BBa-Db---B-D---bbdAc--a-:0:0:1:31:0:0:0:0:10

    Score is X:0 O:0. Unlimited Game
    +13-14-15-16-17-18------19-20-21-22-23-24-+
    | X O O | | O X O O |
    | X O O | | O O |
    | X | | O O |
    | X | | O |
    | | | |
    | |BAR| |
    | | | |
    | | | X |
    | | | X |
    | X O | | X X X |
    | X O | | X O X X |
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 128 O: 124 X-O: 0-0
    Cube: 1
    X to play 31

    Here, I expect to be wrong because my answer is not at all QF-friendly. However, I'll explain my thinking anyway.

    Getting hit is likely to be quite bad so I won't give any more shots.
    Also, I may hit the opponent so I will preserve my inner board.
    This leads me to 6/2.

    Admittedly, this is much simpler reasoning than Szemeredi used when
    he proved in http://matwbn.icm.edu.pl/ksiazki/aa/aa27/aa27132.pdf
    that positive-density subsets of the natural numbers contain arbitrarily
    long arithmetic progressions but we can't all be brillint all the time.

    Here, not only am I not brilliant; I'm probably not even correct!
    Is that semi-colon ok? It looks weird to me.

    Paul

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Timothy Chow@21:1/5 to All on Thu Dec 1 09:17:16 2022
    XGID=--BBa-Db---B-D---bbdAc--a-:0:0:1:31:0:0:0:0:10

    Score is X:0 O:0. Unlimited Game
    +13-14-15-16-17-18------19-20-21-22-23-24-+
    | X O O | | O X O O |
    | X O O | | O O |
    | X | | O O |
    | X | | O |
    | | | |
    | |BAR| |
    | | | |
    | | | X |
    | | | X |
    | X O | | X X X |
    | X O | | X O X X |
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 128 O: 124 X-O: 0-0
    Cube: 1
    X to play 31

    O's blot on her 1pt allows X to play more purely than he would
    otherwise. See the variant for comparison.

    1. Rollout¹ 13/10 11/10 eq:-0.242
    Player: 44.96% (G:14.38% B:0.74%)
    Opponent: 55.04% (G:23.19% B:0.55%)
    Confidence: ±0.012 (-0.254..-0.230) - [100.0%]

    2. Rollout¹ 13/9 eq:-0.326 (-0.084)
    Player: 42.79% (G:13.45% B:0.65%)
    Opponent: 57.21% (G:25.39% B:0.53%)
    Confidence: ±0.011 (-0.337..-0.315) - [0.0%]

    3. Rollout¹ 6/2 eq:-0.355 (-0.113)
    Player: 42.60% (G:9.97% B:0.40%)
    Opponent: 57.40% (G:21.88% B:0.42%)
    Confidence: ±0.013 (-0.368..-0.343) - [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=--BBa-Db---B-D---bbeAc----:0:0:1:31:0:0:0:0:10

    Score is X:0 O:0. Unlimited Game
    +13-14-15-16-17-18------19-20-21-22-23-24-+
    | X O O | | O X O |
    | X O O | | O O |
    | X | | O O |
    | X | | O |
    | | | O |
    | |BAR| |
    | | | |
    | | | X |
    | | | X |
    | X O | | X X X |
    | X O | | X O X X |
    +12-11-10--9--8--7-------6--5--4--3--2--1-+
    Pip count X: 128 O: 129 X-O: 0-0
    Cube: 1
    X to play 31

    1. Rollout¹ 6/2 eq:-0.228
    Player: 44.66% (G:9.31% B:0.32%)
    Opponent: 55.34% (G:18.15% B:0.42%)
    Confidence: ±0.012 (-0.240..-0.216) - [84.4%]

    2. Rollout¹ 13/10 11/10 eq:-0.237 (-0.009)
    Player: 44.38% (G:11.84% B:0.63%)
    Opponent: 55.62% (G:18.88% B:0.55%)
    Confidence: ±0.011 (-0.248..-0.225) - [15.6%]

    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)