A madly challenging placement puzzle by Siebenstein-Spiele founder Jürgen Reiche. In order to solve the puzzle, the sum of touching numbers is the same (add up the numbers wherever they touch). Each piece has one correct location and one correct orientation, so there are only four solutions possible.
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.
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