How to play chess against a large number of players simultaneously? Lately, we have done an experiment in our chess club and liked it much. We were 4 players, and we wanted to play simultaneous each against each other. This setup worked (more or less, see the following diagram):



The players 1, 2, and 3 may sit on their tables, but the player 4 (myself) had to walk around from board to board (identified by Pl4).

Then a 5th player came around, and we could not find a reasonable setup where we can play and know who is playing where.

Is this a known problem, and for how many are solutions known? For 2, 3, and 4, it is easy, but how about higher numbers?
Here are some ideas that might help!