It will take historic strength to solve this one! The Hercules Cube wooden burr puzzle is a challenging brain teaser that is very nicely made with a tough degree of difficulty to solve. Featuring 33 pieces total. Even though there are many pieces, the size of even the smallest piece is quite substantial due to the overall size of the bock. First, figure out how to take the burr apart - and then get it back together once disassembled. Both tasks are sure to take some mental strength! 

Dimensions: 3.25" cube
Difficulty level: 5 (out of 6)
Suggested age: 15+