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Directors - movements for awkward numbers? Thoughts please!

#1 User is offline   zenbiddist 

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Posted 2018-January-23, 18:45

Hi there,

I like to be ready for all sorts of awkward numbers, and these are the scenarios I'd like help with.
For each of these scenarios, the ideal solution would play 27 boards, and have as many stationary pairs as possible, and be the best compromise between simplicity/balance.
Thanks!

4.5T - is there something simpler than a 9x3 Howell?
5.5T - is there something better than a standard ¾ Howell movement (9x3) with 3 stationary pairs?
6.5T - is there something better than an 8x3 hesitation? 27 boards would be ideal.
7.5T - is there something better than a 10x3 Blackpool (cut short) or hesitation?

Cheers!

Ps: does anyone have the .CSV files for the movements? I don't have the templates in a form recognised by Compscore, which is what I need.
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#2 User is offline   gordontd 

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Posted 2018-January-24, 02:48

View Postzenbiddist, on 2018-January-23, 18:45, said:

Hi there,

I like to be ready for all sorts of awkward numbers, and these are the scenarios I'd like help with.
For each of these scenarios, the ideal solution would play 27 boards, and have as many stationary pairs as possible, and be the best compromise between simplicity/balance.
Thanks!

4.5T - is there something simpler than a 9x3 Howell?
5.5T - is there something better than a standard ¾ Howell movement (9x3) with 3 stationary pairs?
6.5T - is there something better than an 8x3 hesitation? 27 boards would be ideal.
7.5T - is there something better than a 10x3 Blackpool (cut short) or hesitation?

Cheers!

Ps: does anyone have the .CSV files for the movements? I don't have the templates in a form recognised by Compscore, which is what I need.

Within the parameters you've given, you don't have a lot of scope for variation. For 7.5 tables you would be better with the Hesitation Mitchell than the Blackpool. For 6.5 tables you have the option of a Full Howell - it only has 26 boards and it only has one stationary table, but it has the great feature that everyone plays everyone else.
Gordon Rainsford
London UK
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#3 User is offline   barmar 

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Posted 2018-January-24, 11:05

You can find movements for a number of small games at the MIT/DL Bridge Club website (we averaged about 6 tables in 2017).

http://web.mit.edu/m...ib.html#Manager

#4 User is offline   NickRW 

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Posted 2018-January-24, 16:00

View Postzenbiddist, on 2018-January-23, 18:45, said:

...the ideal solution would play 27 boards, and have as many stationary pairs as possible...

4.5T - is there something simpler than a 9x3 Howell?

Not really given that it is 4.5 tables. For 5 full tables you could play a Mitchell (5x5) or a hesitation (6x4) or a double hesitation (7x4), but when there is a sit out 4 or 5 boards twiddling thumbs is not ideal.

Quote

5.5T - is there something better than a standard ¾ Howell movement (9x3) with 3 stationary pairs?

Again not really for similar reasons

Quote

6.5T - is there something better than an 8x3 hesitation? 27 boards would be ideal.

Double hesitation Mitchell for 9x3

Quote

7.5T - is there something better than a 10x3 Blackpool (cut short) or hesitation?

Nope - what is wrong with a hesitation? I wouldn't recommend the Blackpool for 7.5 tables as one pair will sit out twice.
"Pass is your friend" - my brother in law - who likes to bid a lot.
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#5 User is offline   barmar 

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Posted 2018-January-25, 09:56

With 6.5 tables, our club's usualy movement is Pete Matthews's H7RVR-S:

Quote

Bye-stand scrambled Mitchell; rover bumps both directions for 2
boards (NS 1-6 stationary, play 4 boards before EW change
tables); arrow switch for last 4 boards. Relay 3-4, bye-stand 6-
1, roving pair 13 starts 4NS after 2 boards.

Each round is 4 boards, but sit-outs are only half of the round.

However, we only play 24 boards, not 27.

#6 User is offline   zenbiddist 

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Posted 2018-February-06, 23:49

View PostNickRW, on 2018-January-24, 16:00, said:

Not really given that it is 4.5 tables. For 5 full tables you could play a Mitchell (5x5) or a hesitation (6x4) or a double hesitation (7x4), but when there is a sit out 4 or 5 boards twiddling thumbs is not ideal.


Again not really for similar reasons


Double hesitation Mitchell for 9x3


Nope - what is wrong with a hesitation? I wouldn't recommend the Blackpool for 7.5 tables as one pair will sit out twice.


7T Double Hesitation - Thanks Nick. Do you have a movement plan for it?
7.5T Hesitation rather than Blackpool (because revenge sit-out) - excellent! I'd forgotten about that. Thanks
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#7 User is offline   gordontd 

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Posted 2018-February-07, 02:04

View Postzenbiddist, on 2018-February-06, 23:49, said:

7T Double Hesitation - Thanks Nick. Do you have a movement plan for it?
7.5T Hesitation rather than Blackpool (because revenge sit-out) - excellent! I'd forgotten about that. Thanks

NAME: Double Hesitation Mitchell

SET OUT BOARDS:
9 sets
Two relays between Table 4 and Table 5

PAIR NUMBERS:
Other NS pairs take table number
EW pairs add 6 to table number
There is no pair 2


PAIR MOVEMENT:
Pairs 1 to 6 are stationary
Pairs 7 to 15 move round following circuit:
->EW1->EW2->...->EW6->EW7->NS2->NS7->EW1->

ARROW SWITCH:
On last round at Table 3
On last three rounds at Table 6

COMMENT:
This movement is inferior to the 26-board Howell;
Its great merit is that table cards can be dispensed with if the moving
pairs are instructed to write down their itinerary at the start of the
session.

I tried to put the table cards here but the spacing was all lost. Instead here is the EBUScore format movement - each line is a table containing NS, EW, Bd, NS, EW, Bd etc in round order.

[M49] Double Hesitation Mitchell, (Pair 15 = Pair 2)
0,7,27,3,9,0
1,7,1,1,2,2,1,14,3,1,13,4,1,12,5,1,11,6,1,10,7,1,9,8,1,8,9
14,8,2,13,7,3,12,2,4,11,14,5,10,13,6,9,12,7,8,11,8,7,10,9,2,9,1
3,9,3,3,8,4,3,7,5,3,2,6,3,14,7,3,13,8,3,12,9,3,11,1,10,3,2
4,10,4,4,9,5,4,8,6,4,7,7,4,2,8,4,14,9,4,13,1,4,12,2,4,11,3
5,11,7,5,10,8,5,9,9,5,8,1,5,7,2,5,2,3,5,14,4,5,13,5,5,12,6
6,12,8,6,11,9,6,10,1,6,9,2,6,8,3,6,7,4,2,6,5,14,6,6,13,6,7
2,13,9,14,12,1,13,11,2,12,10,3,11,9,4,10,8,5,9,7,6,8,2,7,7,14,8
Gordon Rainsford
London UK
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#8 User is offline   NickRW 

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Posted 2018-February-07, 05:04

View Postgordontd, on 2018-February-07, 02:04, said:

PAIR NUMBERS:
Other NS pairs take table number
EW pairs add 6 to table number
There is no pair 2



Sure you've got that right Gordon? That means NS at T7 is pair 7 and EW at T1 is also pair 7!
"Pass is your friend" - my brother in law - who likes to bid a lot.
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#9 User is offline   gordontd 

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Posted 2018-February-07, 05:07

View PostNickRW, on 2018-February-07, 05:04, said:

Sure you've got that right Gordon? That means NS at T7 is pair 7 and EW at T1 is also pair 7!

No, if you are talking about the first round, NS at T7 is pair 2.
Gordon Rainsford
London UK
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