Starts with the letter 'Ult'
- Ultima . Version using Alfaerie graphics. Author: David Howe. Inventor: Robert Abbott.
- Ultima with Alternate Graphics . Game where each type of piece has a different capturing ability. Author: David Howe. Inventor: Robert Abbott.
- Ultimate Battle Chess . Pawns, kings, queens, and knights move differently. By Vu Q Vo.
- Ultimatum . Variant of Ultima that adds a FIDE-Queen and an Advancer in place of one Long-Leaper and one Chameleon. By Roberto Lavieri.
- Ultra Chess. On 10 by 10 board with two queens, and major pieces have an additional king's move. Author: Pavel Tikhomirov. Inventor: Ruggero Micheleto.
- Ultra Slanted Escalator Chess . Game on an asymmetrical board of 84 squares with Crabs and Ultras. Author: Peter Aronson. Inventor: David Short.
|6 'Zillions of Games file' entries listed||2 'Large board' entries listed|
|1 'Unorthodox shaped board' entry listed||2 'In a category all its own' entries listed|
Total items listed: 6