In this fast-paced educational game, up to four players draw seven tiles each and begin forming crosswords of numbers so that each grouping adds up to 22. For each 22 that's hit, a player yells "Ku-do" and selects more tiles so he or she always has seven. When the tiles are gone, players add up their points — one point per each 22 and extra points for use of the same number two or three times in the same equation. Tiles with colored numbers may be counted as positive or negative numbers, and players can use the dice to set number goals for the amount of rounds they wish to play. Launch date: February 2009.