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Six table rotation

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Howard Brazee

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Mar 5, 2011, 10:51:36 AM3/5/11
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My friendly contract bridge group has rotation sheets for up to 5
tables. Anybody have a source we can print up for more tables?

We draw sheets and then go to the randomly selected table and partner,
play 4 games then go to the next assignment.

Herb

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Mar 5, 2011, 11:41:19 PM3/5/11
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Howard Brazee wrote:

Richard Pavlicek has a website with many movements and printable
forms, here:

http://www.rpbridge.net/


Here are a couple of movements found at bridgeguys.com for moving 24
players (6 tables):

This one is for a 24 player individual, playing 28 boards

http://www.bridgeguys.com/pdf/Movements/IN/IN24P2428B.pdf

ANd this one is for playing 21 boards:

http://www.bridgeguys.com/pdf/Movements/IN/24PlayerIndividualMovement.pdf

- Herb

Michael Angelo Ravera

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Mar 7, 2011, 2:23:32 PM3/7/11
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How many boards do you want to play?

If you are trying to play an Individual movement, with 7 tables, you
would do what is frequently called a "Rainbow" movement. North players
stay put, West players up one, South players up two, East players down
one. I beleive that, in this configuration that the boards go down 2.
This would get you 28 boards with 7 different partners and 14
different opponents.

With 6 trables, the Rainbow movement doesn't work so well (for the
mathematically inclined, this is due to the fact that 6 is a modular
anti-prime), but to make the movement complete, you would have to play
23 rounds. Certainly, this is more than you have in mind. So, you will
have to use some abbreviated form of the movement.

Howard Brazee

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Mar 14, 2011, 2:00:51 PM3/14/11
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On Mon, 7 Mar 2011 11:23:32 -0800 (PST), Michael Angelo Ravera
<mara...@prodigy.net> wrote:

>How many boards do you want to play?

We hardly ever get past 5 rounds or so.

>If you are trying to play an Individual movement, with 7 tables, you
>would do what is frequently called a "Rainbow" movement. North players
>stay put, West players up one, South players up two, East players down
>one. I beleive that, in this configuration that the boards go down 2.
>This would get you 28 boards with 7 different partners and 14
>different opponents.
>
>With 6 trables, the Rainbow movement doesn't work so well (for the
>mathematically inclined, this is due to the fact that 6 is a modular
>anti-prime), but to make the movement complete, you would have to play
>23 rounds. Certainly, this is more than you have in mind. So, you will
>have to use some abbreviated form of the movement.

Trying this out on paper for 6 tables, I see that if player 1 is North
and player 2 is south on table 1, round 1, they will also be partners
on round 4 and round 8. That doesn't work.

--
"In no part of the constitution is more wisdom to be found,
than in the clause which confides the question of war or peace
to the legislature, and not to the executive department."

- James Madison

Howard Brazee

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Mar 14, 2011, 2:07:28 PM3/14/11
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On Sat, 05 Mar 2011 20:41:19 -0800, Herb <He...@the.herb.garden> wrote:

>Howard Brazee wrote:
>
>> My friendly contract bridge group has rotation sheets for up to 5
>> tables. Anybody have a source we can print up for more tables?
>>
>> We draw sheets and then go to the randomly selected table and partner,
>> play 4 games then go to the next assignment.
>
>Richard Pavlicek has a website with many movements and printable
>forms, here:
>
>http://www.rpbridge.net/
>
>
>Here are a couple of movements found at bridgeguys.com for moving 24
>players (6 tables):
>
>This one is for a 24 player individual, playing 28 boards
>
>http://www.bridgeguys.com/pdf/Movements/IN/IN24P2428B.pdf


I wouldn't be surprised if this is what I want. But I haven't been
able to figure it out. I have to create some score sheets that tell
each player where to move next. I'm thinking a stanza is probably 8
rounds - in which case one stanza is all we need.

>ANd this one is for playing 21 boards:
>
>http://www.bridgeguys.com/pdf/Movements/IN/24PlayerIndividualMovement.pdf
>
> - Herb

Again, I'm not understanding this - other than it has byes, which I
don't want.

Michael Angelo Ravera

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Mar 14, 2011, 7:43:16 PM3/14/11
to
On Mar 14, 11:00 am, Howard Brazee <how...@brazee.net> wrote:
> On Mon, 7 Mar 2011 11:23:32 -0800 (PST), Michael Angelo Ravera
>
> <marav...@prodigy.net> wrote:
> >How many boards do you want to play?
>
> We hardly ever get past 5 rounds or so.
>
> >If you are trying to play an Individual movement, with 7 tables, you
> >would do what is frequently called a "Rainbow" movement. North players
> >stay put, West players up one, South players up two, East players down
> >one. I beleive that, in this configuration that the boards go down 2.
> >This would get you 28 boards with 7 different partners and 14
> >different opponents.
>
> >With 6 trables, the Rainbow movement doesn't work so well (for the
> >mathematically inclined, this is due to the fact that 6 is a modular
> >anti-prime), but to make the movement complete, you would have to play
> >23 rounds. Certainly, this is more than you have in mind. So, you will
> >have to use some abbreviated form of the movement.
>
> Trying this out on paper for 6 tables, I see that if player 1 is North
> and player 2 is south on table 1, round 1, they will also be partners
> on round 4 and round 8.     That doesn't work.
>

That's my point. Because 6 is a modular antiprime (bascially, 2, 3,
and 4 all cause cycles in less than 6 additions), you can't run any
REGULAR rainbow movement.

However, if you have some of the players move twice after the third
rotation, you can play 5 rounds playing different opponents, different
boards, and different partners.

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