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Gift for cryptography enthusiasts
This ancient mathematical challenge blends logic
I found the design for these Monster Puzzles from a mathematician's website and thought they would make fantastic puzzles
STEM Learning Fun - A great way to develop critical thinking
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Devil's Cube Wooden Puzzle | Very Hard Puzzle for Adults teacher gift Gift for cryptography enthusiastsThis is a fiendish puzzle with 8 pieces with angles and peaks that will test your mind and patience. Mike Czerwinski sent me a brilliant analysis of the mental thought process required to solve it, which will be supplied with your puzzle. When this cube is built, it fits nicely in the angled presentation base. Quite an attractive puzzle. Level 4 difficult Level of Difficulty: Level 4 Materials: Wood
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