- 65 Square Chess. FIDE chess but pretend there's another square smack dab in the middle. By Jeremy Gabriel Good.
- Advanced wizard chess. Missing description By Daniil Frolov.
- Air Attack Chess. Missing description By Stephen R. Stockman.
- Backlash. Play on two boards, but capturing on one board leads to a backlash on the other! By Greg Strong.
- BordahBee. A two-move, two-board game with restrictions for the second move according to the first move. By Gary K. Gifford.
- D B Extreme ! (Doppelganger BordahBee Extreme). Doppelganger BordahBee Combo with Very High Capturing Potential. By Gary K. Gifford.
- Dead Ringers Chess. Double chess game with twin pieces that are captured simultaneously. By Adrian Alvarez de la Campa.
- Dimension X. Unusual transdimensional pieces interact with FIDE Chess. Author: Jeremy Gabriel Good. Inventor: Gary K. Gifford.
- Duel Chess. PBM Preset for 43-space variant played on two boards. Author: Fergus Duniho. Inventor: Erez Schatz.
- Smaller Alice Chess. Missing description Author: Abdul-Rahman Sibahi. Inventor: Vernon Rylands Parton.
- Tandem-84. Jim Aikin's Tandem-84 on the Game Courier. Author: Abdul-Rahman Sibahi. Inventor: Jim Aikin.
Total items listed: 13