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Opponents in BBO tournaments

I played in the 1400 BBO tournament on Sunday and noticed that we played two pairs of opponents twice, this seemed a bit strange with so many pairs competing. What movement does the ENU use on BBO?

Comments

  • EBU uses that which BBO insists on, and their choices are a bit opaque - it seems to be very much settled on Mitchell movements, and repeating the circle if needed.

  • edited April 2020

    @patricks said:
    EBU uses that which BBO insists on, and their choices are a bit opaque - it seems to be very much settled on Mitchell movements, and repeating the circle if needed.

    I think it happens in the EBU tournaments because they choose 'Swiss' as the movement type which is in fact Danish.

    Otherwise as Patricks says. BBO automatically splits fields greater than 16 tables into sections. If you choose 'clocked' you get a 2-winner Mitchell type movement and provided the number of rounds is not greater than the min table size in any section you will get no-one playing the same pair twice.

    If the number of rounds is greater than the minimum sections size in any section then you will get at least one 'revenge round'. E.g. you have 18 tables. BBO splits it into two 9-table sections. If you play 10 rounds you get 1 revenge round.

    If you choose 'un-clocked' it just makes up new tables as old tables finish. Unless you have a small enough field to guarantee 'all-play-all' this means play a slow pair (or wait whilst a sitiout is subbed) in te first round and you can stuck 'in the slow lane for the whole tournament;

    Peter Bushby Suffolk

  • There is a bit of a problem with the settings, which they haven't yet solved, that causes some of our Mitchell games to change into Swiss, which in the BBO implementation of it allows re-matches.

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