- Level 5 - Easy
- Level 6 - Tricky
- Level 7 - Challenging
- Level 8 - Demanding
- Level 9 - Gruelling
- Level 10 - Mind Boggling
|Object||The sum in each row must be the same!|
|Difficulty||Level 9 - Gruelling|
|Types||Jürgen Reiche, European Wood Puzzles|
|Dimensions||12.8 cm diameter (Round) x 1.6 cm / 5 in diameter x 0.6 in|
A unique, well crafted wooden puzzle designed by Jürgen Reiche.
Arrange the numbers in the rows so that the sum is the same in all.
A challenging numbers puzzle!
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