This is an exchange puzzle by Allan Stein and Siebenstein-Spiele that was given at the IPP 39 (International Puzzle Party) in Kanazawa, Japan in 2019. Featuring two different objectives, this puzzle is a lovely collection piece that boasts a beautiful, shimmery finish with the names of the puzzle, the design and the IPP markings on the front. The wooden circles are made of rich wood and are easy to maneuver.
The 2 goals of the puzzle are:
1) In every column, all circles have the same color.
2) In every row (vertical, horizontal) and in both diagonals every circle has a different color.
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.