6.9 in x 4.4 in x .6 in / 17.5 cm x 11.2 cm x 1.5 cm
An extreme example of the multiple-peg maze concept. Each of the 20 pegs must move through one of four long mazes; many pieces must move simultaneously in order to solve the puzzle and open the lock.
Made in laser-cut wood, acrylic, and stainless steel by Jean-Claude Constantin. Jean-Claude Constantin lives in Germany, where he designs and manufactures many different wood and metal puzzles, as well as magic tricks and other intellectual toys and games.