From the game bag: "Scuda Checkers is basically playing two games of checkers simultaneously."
The game comes in a cloth drawstring bag, with a cloth 6x6 grid checker board with circles and squares on the grid instead of red/black, and 24 wooden cubes (12 yellow and 12 orange).
One person plays orange cubes on circles and yellow on squares. The other plays yellow on circles and orange on squares. On your turn, you decide whether to make a move on either squares or circles; your cubes stay on circles/squares according to what they started on, following normal checkers rules. So you are basically playing two small games of checkers at once: orange vs. yellow on circles, and orange vs. yellow on squares.