A polygold is a plane figure formed by joining equal golden triangles at equal edges. The maximum symmetry for polygolds is the symmetry of a regular decagon, or 10-way rotary with reflection. If a polygold lacks apothemal bilateral symmetry, its Baiocchi figures must be Galvagni figures or contain Galvagni figures.
Claudio Baiocchi proposed the idea of Baiocchi Figures in January 2008. Baiocchi figures first appeared in Erich Friedman's Math Magic for that month.
Here are minimal known Baiocchi figures for polygolds with from 1 to 4 cells. Not all these solutions are uniquely minimal.
See also
Last revised 2026-01-06.