Items Invented by Holly Gummelt
- The Sons of Mithra. Elaborate Fantasy variant with 13 different types of pieces per side. (10x10, Cells: 100) Author: Michael Chang Gummelt. Inventor: Michael Chang Gummelt and Holly Gummelt.
- The Sons of Mithra. Computer program for playing fantasy variant. Author: Michael Chang Gummelt. Inventor: Michael Chang Gummelt and Holly Gummelt.