A very hard logic and packing puzzle in one. The puzzle contains 2 matching sets of 16 pieces; a white set arranged in a 4x4 grid, and a red set of identical shapes which can be manipulated so as to create composite shapes. The goal is to rearrange the 16 white pieces within their 4x4 grid so that the red pieces corresponding to the 4 white pieces forming any row, column or either diagonal are then able to tile a 5x5 square and fit in one of the frames.
Made in laser-cut wood and acrylic 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.