Loops, pictures and seating plans, drawn out of nothing but the constraints. Five puzzles, back to back.
Shortest first, longest last. Each game pays 15 points for a win down to 1 for finishing, and the circuit adds all 5 up. A game played on its own still counts toward it, but you need all 5 in the same day to take a rank on the circuit board.
The same 5 games every day, with new puzzles in each of them at midnight Eastern.
See all the circuits