From the publisher's brochure:'We're honored to have an exclusive of this game invented by the beloved author of countless books on recreational mathematics. The hand painted, 15' square fringed game cloth (washable) serves for four games for 2 players, plus a variety of jumping and positional puzzles for solitaire. The title game lets players invade the opponent's castle, capture as in checkers. Another game is an unusual version of 'Nim'. And 'Caravan' is a desert-crossing trek, with strings attached. The 18 solid hardwood maple disks are hand-tinted in 3 colors. Directions are on a 'scroll'. For 1 to 3 players, Ages 8 and up.' - BoardGameGeek