Expert: Paul Klarreich - 8/28/2009

Question
I'd like to schedule and evening distribute play between 12 tennis players, playing 4 at a time (doubles) so that the players play with the other 11 players an equal number of times and also maximize the frequency of play

Answer
Questioner: Charlie
Country: United States
Category: Advanced Math
Private: No
Subject: Permutation/even distribution
Question: I'd like to schedule and evening distribute play between 12 tennis players, playing 4 at a time (doubles) so that the players play with the other 11 players an equal number of times and also maximize the frequency of play
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If you check with the local duplicate bridge club, they should have a copy of 'DUPLICATE BRIDGE DIRECTORS HANDBOOK' by Groner.

I think it has exactly what you need.  Look in the chapter on INDIVIDUAL MOVEMENTS -- 12 players.