Make the sum in each row the same
Place the 19 pieces into the frame so that the sum of each row is the same. Rows can be horizontal, vertical, and diagonal. 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.