Game package includes foam 3x3 inch 'board' with 8 cubes (4 red, 4 blue) for the play of the basic game. The game has features making it attractive for color blind and vision impaired persons. The cubes have embossed letters indicating their color and the foam board should make completely tactile play easy. Also a 3x3 inch cardboard board is included for a major game variant (called Chinese Tac-Tickle) using the 8 cubes. This board has no major tactile features. Each game has multiple variants, some of which are particularly designed to teach mathematical principles.Rules include pictorial examples of play for basic game and several of the variants.Quoting the game description on the packaging.'TAC-TICKLE: A Challenging Game of Pure Strategy By Professor Harry D. Ruderman, Chairman, Mathematics Department, Hunter College High SchoolFor all ages. An Eight-game kit that sharpens the wits and stimulates learning. These are pure problem solving games like chess, checkers and tic-tac-toe. TAC-TICKLE compares in complexity and depth of reasoning with tic-tac-toe as chess compares with checkers.Another GAME FOR THINKERS from WFF 'N PROOF PublishersA Gift That Is a Compliment To Receive!' - BoardGameGeek