The Pentagon... The objective is to fit all 7 pieces into the frame without overlapping. Designed by Siebenstein-Spiele founder Jürgen Reiche and made in laser-cut wood by Siebenstein-Spiele.
Based in Munster, Germany, Siebenstein-Spiele was founded in 1992. Although the company is mainly known for board games, Siebenstein-Spiele also makes many wooden puzzles, several of which have been designed by company founder Jürgen Reiche. The original design of this puzzle was by Rene Dawir.