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  • why is this a whopper?

    From Timothy Chow@21:1/5 to badgolferman on Sat Jul 31 21:20:01 2021
    On 7/30/2021 9:29 AM, badgolferman wrote:
    Timothy Chow wrote:
    Having said that, I'll note that eXtremeGammon actually recommends
    redoubling, so I'm a little surprised at the GNU rollout results.
    See below. Maybe you're using a different match equity table.

    I don't know how to verify this. Regardless though, should there be
    such a difference between gnubg calling this double a whopper and xg
    calling it good?

    You can go to Analyze -> Match equity table to see what the name of
    your MET is. Also, what version of GNU are you using? (Go to
    Help -> About GNU Backgammon -> Build info.)

    When I roll it out using my version of GNU, I get similar results to
    what I get with XG.

    ---
    Tim Chow

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  • From badgolferman@21:1/5 to Timothy Chow on Sun Aug 1 11:34:00 2021
    Timothy Chow wrote:

    On 7/30/2021 9:29 AM, badgolferman wrote:
    Timothy Chow wrote:
    Having said that, I'll note that eXtremeGammon actually recommends >>>redoubling, so I'm a little surprised at the GNU rollout results.
    See below. Maybe you're using a different match equity table.

    I don't know how to verify this. Regardless though, should there be
    such a difference between gnubg calling this double a whopper and xg >>calling it good?

    You can go to Analyze -> Match equity table to see what the name of
    your MET is. Also, what version of GNU are you using? (Go to
    Help -> About GNU Backgammon -> Build info.)

    met/zadeh.xml

    When I roll it out using my version of GNU, I get similar results to
    what I get with XG.

    1.06.002-mingw 32-bit 20180802

    I also did a Hint of the position this time and got this:

    Cube analysis
    2-ply cubeless equity +0.789 (Money: +0.790)
    0.895 0.001 0.000 - 0.105 0.001 0.000
    Cubeful equities:
    1. No double +0.889
    2. Double, pass +1.000 (+0.111)
    3. Double, take +0.751 (-0.138)
    Proper cube action: No redouble, take (55.4%)

    Not sure if this is an anomaly and should be reported?

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  • From badgolferman@21:1/5 to Timothy Chow on Sun Aug 1 13:37:41 2021
    Timothy Chow wrote:

    On 8/1/2021 7:34 AM, badgolferman wrote:
    met/zadeh.xml

    That's the explanation. The Zadeh MET dates from 1977. Click on
    the "Load Table" button and load some other table (one with the
    name "Kazaross" in it if there is one).


    Thanks! I changed it to Kazaross xg2 and now receive the same results
    as you.

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  • From Timothy Chow@21:1/5 to badgolferman on Sun Aug 1 09:26:50 2021
    On 8/1/2021 7:34 AM, badgolferman wrote:
    met/zadeh.xml

    That's the explanation. The Zadeh MET dates from 1977. Click on
    the "Load Table" button and load some other table (one with the
    name "Kazaross" in it if there is one).

    ---
    Tim Chow

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