Starts with the letter 'digit'
- 10x10 Multiple Knot Chess. Board in `mathematical shape'.
- 12 Sharp Chess. 4-player versions of 10-or-more-file variants on cross-shaped boards. (12x12, Cells: 108) By Charles Gilman.
- 125 Percent Shogi and 125 Percent Xiang Qi. 4-player versions of Oriental variants on cross-shaped boards. (15x15, Cells: 125) By Charles Gilman.
- 3-Player Chess I. Missing description (10x10, Cells: 75) By Bn Em.
- 3d Chessboards, Epic Games. Expensive chessboards with 3d surface. Author: David Howe.
- 4 Faces. 2d multiplayer variant based on a feature of Tunnelshogi. (9x9, Cells: 45) By Charles Gilman.
- 64 triangles. Missing description (8x8, Cells: 64) By Daniil Frolov.
- 8x8 Heart Chess. Chessboard in form of heart.
- 8x8 Hyperbolic Chess. Mathematician Missoum has a board based on hyperbola.
- 8x8 Reversible Stairs-Chess. Chessboard looks like stairs.
- 8x8 Spider Web Spiral Chess. Board in shape of spider web.
Total items listed: 11