Items Authored by Roger Cooper
- Bid Chess. Players bid for special pieces or powers. By Roger Cooper.
- Fianchetto Chess. Rooks and bishops switched in opening setup. (8x8, Cells: 64) Author: Roger Cooper. Inventor: Jack Middleman.
- Free Castling Rule. Less restrictive castling rules. (8x8, Cells: 64) Author: Roger Cooper.
- Free Placement. Game starts with players alternatingly placing pieces on board. (8x8, Cells: 64) By Roger Cooper.
- Odds Chess. Ways of giving a weaker opponent better odds. (8x8, Cells: 64) Author: Roger Cooper.
- Random Pieces. A 20 game match is played, with each player receiving a number of pieces equal in value to the game number. (8x8, Cells: 64) By Roger Cooper.
- Different Armies. Various black armies versus the standard white army. By Roger Cooper.
- Michael's Chess. An elaboration of Lord Dunsany's Chess with varying Pawn sides. By Roger Cooper.
- Must Capture Chess. Capturing is mandatory. Author: Roger Cooper.
- Odds Chess . Ways of giving a weaker opponent better odds. Author: Roger Cooper.