Interlock 4 | Stewart Coffin 3x3x3 Wooden Cube Puzzle matching puzzle That's the genius of the

That's the genius of the No Fit Puzzle

Developed with the aid of both encryption expert Mic Healey and supported blind users

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Handcrafted wooden design for durability and smooth handling

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Interlock 4 | Stewart Coffin 3x3x3 Wooden Cube Puzzle matching puzzle That's the genius of theInterlock 4 is a handcrafted wooden cube brain teaser designed by Stewart Coffin. Four uniquely shaped pieces reassemble into a perfect 3x3x3 cube. The catch: the pieces do not just fit. They interlock in a specific sequence, so order and orientation matter as much as shape. Handcrafted by Creative Crafthouse with Stewart Coffin's permission. Precision cut pieces with natural contrasting wood tones. 4 wooden pieces. Forms a clean 3x3x3 cube when