The Bio-Logical Game; Anti-Virus is a sliding puzzle game with a new twist: tiles that only slide diagonally and can move in groups; Once you catch the bug; its hard to put this game down. Sliding escape; puzzle with unique diagonal grid. Contains booklet with 60 multi-level challenges and solutions. Includes 1 puzzle. Puzzle has 11 pieces. Maximum size of completed puzzle 14.7 x 14.7cm. For ages 7 years and over. (not included) . 2 year manufacturers guarantee. WARNING(S): Not suitable for children under 3 years old. Only for domestic use. This product contains no.