Tangoes Card Sets provide hours of additional play variety for the Tangoes tangram-based games. Each pack includes 54 challenging puzzles and solutions, on 27 cards, in a slim resealable plastic container. There have been a total of 11 expansion card sets released, numbered 2 through 12 because they count the original game's cards as set 1. The card sets are not numbered by order of difficulty; each set simply contains new and different puzzles.