



 
Hazel, I think this might work for you. Sorry that it is a bit complicated. First let’s schedule the games. Number the teams X, 1, 2, …, 19. Start like this:
The first game in round i is X i. To get the rest of the games, look at the previous round and add 1 to every team number in every game, and 19 + 1 wraps around to 1 (as if it were a clock with 19 hours). The next games after 19 6 in round 3 are 18 7, 17 8, ... Now you need to schedule the tables. Thinking of the schedule above as an array with 10 columns, subject to the modifications below, the games in columns 2, 3, …, 10 are on tables 2, 3, …, 10, respectively We’re almost done. —Victoria  


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