20 teams in the tournament.
3 teams play in each game.
10 or 11 games are played by each team.
67 games are played in the whole tournament.
Each team plays every other team at least once.

Games # RBG Who-plays-who ..G..G..B.......B........R....G............R..B....G.R..........R.. 1 434 \1111111211211121111 R.R...B..G....B...R...B.................G.R.......................G 2 433 1\111111111121111111 B..R.......G.....R.........G..B......R...G...............B.......B. 3 343 11\21111111111111111 G..............G.....R.G.....G.........B...B.B.R.........R......... 4 334 112\1111111111111111 .R......R...G...............R..B..G...B................B.G........R 5 433 1111\111111111111121 .B.....R.....B...G...G..G........R......R.....R.....B.............. 6 433 11111\21111111111111 .G........B...R.........B..........R.G.G..........G..B.......R..... 7 334 111112\1111111111111 ..B.......R......B..G..B..R.G...............R...G..........R....... 8 433 1111111\111111111112 ...B.B..G.............R............B........G..B....G.R........R... 9 343 21111111\11111111111 ...G......G..R.....B.....B...................G...R........B.R.....B 10 343 111111111\1111211111 ....R......R.G.B......G.....B...R...B................G..B.......... 11 343 1111111111\111112111 ....B...........G.G.....R................B...R..B..R...R.......G... 12 433 21111111111\11111111 ....G.R..R..R.......B............B...B.....G.....G....B............ 13 343 121111111111\1111111 .....R.G..........B............G.......R.........B......R..B..B..G. 14 343 1111111111111\111211 ......G........R..........B...........R.......G...B.......G.B..B.R. 15 343 11111111121111\11111 .......B............R.........R...B.G.....G....G...B......R..G..... 16 334 211111111111111\1111 .........B.........G.B..........G.R......R..B.....R.....G.......G.. 17 334 1111111111211111\111 ...........B....R..R......G..B.R.G.G......B...................G.... 18 334 11111111111112111\11 ............B.G........R...B........R...............R..G....G.R.B.. 19 433 111121111111111111\1 .........................G.R.R..B.....G.B.......R.....G....G.B..... 20 334 1111111211111111111\

This is a minimalist grid in which each team plays each team at least once. Some teams play each other more than once. The first team plays one more game than other teams.