Jacques Ferroul was a prolific inventor of mathematical puzzles. Poly-Spidrons are one of his most complex designs. These puzzles are made by special order. They are laser-cut from transparent tinted acrylic in jewel colors of aqua, amber, blue, amethyst, topaz and sapphire.
Each defined group of pieces has its own color.
The pieces themselves are fractal-like shapes of triangles joined in descending proportions. The graceful mathematics of the complete set you can find fully explained on Jacques' website (https://www.polyforme.fr/php/polyspid.php), together with an astonishing collection of shapes and patterns to solve (https://www.polyforme.fr/php/defi_polyspid_triangle.php). You're welcome to download them to go with your Poly-Spidrons set.