Try Kakuro - the crossword puzzle of numbers! Using the digits 1-9, each horizontal and vertical block must add up to match its clue, but no digits can repeat. As addictive as Sudoku, but even more challenging! Contains 121 number tiles, two training puzzles, over 40 other puzzles and instructions. Ages 8 and up. Recommended for 2 or more players, ages 8 and up. Made in USA. Package dimensions: 10.500 x 10.500 x 2.250 inches. Includes 121 number tiles, two training puzzles, over 40 other puzzles and instructions. Wipe clean with dry or damp cloth. Imported Material & Care Plastic Spot clean only