It occurred to me that it would be possible to have a match in which, say, each of 10 players play each other simultaneously twice. That is, if a regular simul match is a line of boards, this would be a grid, with each player playing black along one row, and white along a column. (The intersection of their row and column would obviously not be played...) Doing it online would simplify things a lot.
It seems like it would be a pretty interesting test of abilities, and solve the usual one-sided nature of simul matches.
Has this been done? What's the common term for it?