Digits is a very clever sliding piece puzzle designed by Jürgen Reiche and produced by Siebenstein-Spiele. Start by removing the center piece and maneuver the remaining eight tiles like any regular slide puzzle. Soon you realize that the shape of the numbers will change, reminiscent of a watch with wacky digits. Mix the tiles and then reorder them with the right sequence (from 9 to 1, left to right and top to bottom). Design: Jürgen Reiche. Manufacturer: Siebenstein-Spiele. Dimensions: 12,5 cm x 8,5 cm x 1,8 cm. Level 4/5.