Scrambled Mitchell How Many Arrow switches?
#1
Posted 2017-February-13, 19:27
Do unto others as you would have others do unto you.
"Mediocrity knows nothing higher than itself, but talent instantly recognizes genius".
#2
Posted 2017-February-13, 21:41
zasanya, on 2017-February-13, 19:27, said:
25% is incorrect 12.5% is right.
I cannot give you the numbers, but this optimises comparisons with players in the opposite direction.
#3
Posted 2017-February-14, 05:52
For example, in an 8 table 3-boards-a-round, rather than switch the last round, you switched the first board on round 6, the second board on round 7, and the last board on round 8?
#4
Posted 2017-February-14, 05:55
fromageGB, on 2017-February-14, 05:52, said:
For example, in an 8 table 3-boards-a-round, rather than switch the last round, you switched the first board on round 6, the second board on round 7, and the last board on round 8?
And then you could go to the computer and enter in all the tables that failed to arrow-switch...
I have always thought there should be arrow-switches in Swiss Pairs, but the same problem would apply.
#5
Posted 2017-February-14, 06:40
Vampyr, on 2017-February-14, 05:55, said:
I have always thought there should be arrow-switches in Swiss Pairs, but the same problem would apply.
Yes, an arrow-switching schedule could be improved if done on a board-by-board basis, but it would be likely to cause lots of failures to comply.
London UK
#6
Posted 2017-February-14, 10:32
As for tv, screw it. You aren't missing anything. -- Ken Berg
I have come to realise it is futile to expect or hope a regular club game will be run in accordance with the laws. -- Jillybean
#7
Posted 2017-February-15, 10:10
blackshoe, on 2017-February-14, 10:32, said:
You're distinguishing ultimate and proximate cause, but does it really matter? The result will still be the same: confusion. If you try to run a complicted movement, you have to be prepared to deal with the inevitable mistakes.
#8
Posted 2017-February-15, 10:15
#9
Posted 2017-February-15, 10:16
barmar, on 2017-February-15, 10:10, said:
Yes, you do.
As for tv, screw it. You aren't missing anything. -- Ken Berg
I have come to realise it is futile to expect or hope a regular club game will be run in accordance with the laws. -- Jillybean
#10
Posted 2017-February-15, 18:06
blackshoe, on 2017-February-14, 10:32, said:
Here sometimes players to fail to arrow-switch the first board of a round. It is not often, but it happens. Is your experiene different? Also, at least at present, Bridgemates can display compass positions in a round, but not for a single board.
On a related note, at the famous North London bridge club, we have to play revenge rounds with 12 tables, because the chief tournament director does not trust the players to handle a double-weave Mitchell. Player education cannot accomplish miracles.
#11
Posted 2017-February-16, 01:20
Vampyr, on 2017-February-15, 18:06, said:
The CTD doesn't trust them to player a share-and-relay Mitchell either?
London UK
#12
Posted 2017-February-16, 04:19
gordontd, on 2017-February-16, 01:20, said:
(Translation for Americans: relay-and-byestand)
The trouble is that the session cannot run over three hours, so the club cannot handle any delays associated with sharing two-board rounds.
#14
Posted 2017-February-16, 10:31
[Edit: I'm sure this was obvious, but Just In Case, I'm not referring to Vampyr here...]
#15
Posted 2017-February-16, 23:08
Vampyr, on 2017-February-16, 04:19, said:
The trouble is that the session cannot run over three hours, so the club cannot handle any delays associated with sharing two-board rounds.
I must have missed something. Where is there sharing in a double-weave Mitchell?
As for tv, screw it. You aren't missing anything. -- Ken Berg
I have come to realise it is futile to expect or hope a regular club game will be run in accordance with the laws. -- Jillybean
#16
Posted 2017-February-17, 01:47
blackshoe, on 2017-February-16, 23:08, said:
You have missed something. I wondered why, if they couldn't do a double weave, they couldn't do a share-and-relay rather than having a revenge round.
London UK
#17
Posted 2017-February-17, 09:08
gordontd, on 2017-February-17, 01:47, said:
Fair enough.
As for tv, screw it. You aren't missing anything. -- Ken Berg
I have come to realise it is futile to expect or hope a regular club game will be run in accordance with the laws. -- Jillybean
#18
Posted 2017-March-22, 14:22
The ratio of switched rounds to total rounds is optimized (depending on which sources you look at) when it equals
0.25 - (T-1)/(8T-4), where T = number of tables
Note for 5 to 16 tables, the ratios below are all slightly more than 1/8 (12.5%) confirming the common 1/8 guideline.
5, 13.89%
6, 13.64%
7, 13.46%
8, 13.33%
9, 13.24%
10, 13.16%
11, 13.10%
12, 13.04%
13, 13.00%
14, 12.96%
15, 12.93%
16, 12.90%
#19
Posted 2017-April-04, 15:44
Last week I was in Bangalore. I played in one of the club games there.
20 tables. 20, one-board rounds, with a skip and a revenge round.
First time I've seen *that* movement.
The TD asked me (who knew I was a part time ACBL TD) what I do about perenially slow players. I mentioned that since we usually play two- or three-board rounds, at least I had *one* board to move...
#20
Posted 2017-April-04, 17:15
mycroft, on 2017-April-04, 15:44, said:
Last week I was in Bangalore. I played in one of the club games there.
20 tables. 20, one-board rounds, with a skip and a revenge round.
First time I've seen *that* movement.
The TD asked me (who knew I was a part time ACBL TD) what I do about perenially slow players. I mentioned that since we usually play two- or three-board rounds, at least I had *one* board to move...
Wonder whether the TD knows the word 'duplicate' has more than one meaning in bridge. I suppose if your'e playing 20 1 board rounds then you could play a 20 table 24 board web Mitchell just as quickly. But maybe the club only has one set of boards . . . If the hands have to be dealt then it will only take a few minutes for them to be duplicated and the copy passed over to the other table.
Get the facts. No matter what people say, get the facts from both sides BEFORE you make a ruling or leave the table.
Remember - just because a TD is called for one possible infraction, it does not mean that there are no others.
In a judgement case - always refer to other TDs and discuss the situation until they agree your decision is correct.
The hardest rulings are inevitably as a result of failure of being called at the correct time. ALWAYS penalize both sides if this happens.