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  • Apparently there are 3 general levels of random computer bridge dealing.

    From Douglas@dtouie6@msn.com to rec.games.bridge on Mon Oct 21 14:33:49 2019
    From Newsgroup: rec.games.bridge

    First is what passes for everything except Bridge Analyser today.
    The best of these is probably BigDeal, more because it is
    generally accepted now. But it is thin gruel compared to what is
    possible, now and in the future.

    Bridge Analyser has a good enough random number source to provide
    unbiased random HANDS.

    However when these same hands are evaluated as SUIT lengths,
    they become ordinary pseudo-random in bias.

    And finally, when evaluated as suit lengths in each separate
    bridge hand, they display even more bias.

    I recently evaluated quantum sourced "true" random numbers. They
    were laughably biased, and volatile. z_values of 3.6 and 6.3.

    However, the numbers from random.org (which are derived from
    atmospheric noise) where quickly unbiased when dealing suit
    lengths in each separate bridge hand.

    So, I suggest that bridge dealing can be improved readily in
    the immediate future with the adoption of cipher algorithms
    (with their inherent security) with huge periods.

    And when someone figures out a way to use an infinite source
    of unbiased random numbers such as random.org in their bridge
    dealing program, a "fair digital bridge deck" will become
    possible. All deals, hands, and suit lengths possible, and
    equally probable, in each and every computer deal.

    Douglas
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  • From pbleic@pbleic@gmail.com to rec.games.bridge on Sat Oct 26 03:51:25 2019
    From Newsgroup: rec.games.bridge

    On Monday, October 21, 2019 at 5:33:51 PM UTC-4, Douglas wrote:

    And when someone figures out a way to use an infinite source
    of unbiased random numbers such as random.org in their bridge
    dealing program, a "fair digital bridge deck" will become
    possible. All deals, hands, and suit lengths possible, and
    equally probable, in each and every computer deal.

    Douglas

    Random.org already has a random card shuffle demo, which could be adopted for bridge shuffles. https://www.random.org/playing-cards/
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