The Perfect Puzzle. Stack up the cats! Select a challenge and then arrange all of the cats on the card so that they fit perfectly within the grid. The cats come in all shapes and sizes, so you'll have to figure out how they precisely nestle together to solve each challenge. Paw your way through all 48 puzzles and consider yourself one clever cat. For a single player. For ages 8 and up. WARNING: CHOKING HAZARD - Small Parts. Not for children under 3yrs.