Open the box.
The goal of the Streichholzbox (Matchbox) looks simple enough – open the box to put something inside and then lock it again. After taking a good look at it, you might start doubting that it is possible, but be sure that it is. The trick involved to solve this puzzle is clever, it requires some serious thinking outside the box. Approximate dimensions: 14.5 cm x 4 cm x 5.4 cm / 5.7 in x 1.6 in x 2.1 in Made in wood 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.