- 007 Chess. 007 Chess involves three move per turn, including one of your opponent's pieces.
- 10-directional Chess. Updated with rule-enforcing presets.
- 123456 Chess. Missing description
- 6hess. Each piece moves 6 times before disappearing.
- Ajax Orthodox Chess. Orthodox Chess with Ajax-Chessmen, and droping Ajax-Ministers.
- Amalgamated Chess. Missing description
- Andy's Chess. Missing description
- Berolina Chess. Classic variant with different moving pawns.
- Bishop Knight Morph Factor. Missing description
- Bland Chess. Chess, but with no diagonal movements (aside from that built within the Knight).
- Cannonrider Chess. The Cannonrider moves differently depending on square colour: on white squares as a Nightrider; else as a Chinese Cannon.
- Cavalier Chess. All pieces except queens have some kind of knight-movement.
- Centaur Chess. All pieces except Pawns move backwards as a Knight.
- CGNP chess. A game with Knightly Pawns.
- Chasm Chess. Berolina Pawns, reflecting Bishop and Queen, and a chasm in the board!
- Crab Chess (Chess4). Blocked flank pawns are have an additional jump move to empty square (with zrf).
- The Demon Game. 10 x 10 game with extra Capablanca pieces.
- Doppelganger BordahBee. A combination of BordahBee and Doppelganger Chess.
- Dr. Who Chess. Variant based on the popular TV seiries.
- Dromedary Chess. Pieces adjacent to the King can leap like a Dromedary (Camel).
- Dynamo Chess. Preset for Dynamo Chess.
- Elk Chess. The double-barrelled Elk moves differently depending on square colour.
- Elkrider Chess. Elkrider plus regular pieces. The Elkrider moves like a Nightrider if standing on white squares, otherwise it moves like a Rook.
- Fabulous Flying Kittens. Toroidally interwoven board using same number of squares and pieces as FIDE Chess.
- FIDE Frolic. FIDE chess, but with each piece able to leap.
- Golden Age Chess on a Really Big Board. Variant on 16 by 16 board with several different pieces.
- Gunnery Chess (with Scorpions). The Scorpion pawns have the additional capability of cannon-like moves. Very advanced. Only recommendable to grandmasters!
- Half Chess of Ralph Betza. Exactly like halfling chess, only the knights are replaced by crabs, making them more compatible with half moving rider pieces.
- Half Courier. Missing description
- Heavy Gravity Chess. Due to heavy gravity, Knights can't jump, Queens, Rooks, & Bishops can't move more than 4 spaces. Kings move like Ferz.
- Hexagonal Hole Chess. A hexagonal variant of Hole Chess. Engineers can move holes and barriers. Teleporters can relocate enemy pieces.
- Hopper Chess (with Scorpions). Pieces standing before friendly pieces can jump over enemy Scorpion pawn and land directly behind it.
- Hopper-Chess. Pieces in front of friendly pieces can land immediately behind enemy pawns.
- House of Mirrors Chess. Mirrors and reflective pieces add interesting twists to strategy by making pieces appear in 2 or 3 places at the same time.
- Improved Chess. An improvement of standard chess: a blocked pawn on the far side gets extra jump moves to empty squares (with zrf).
- King's Guard Chess. Missing description
- Latrunculi duo milia et septum. Chess with rook/ferz & bishop/wazir substitutes for rooks and bishops.
- Little Trio. Missing description
- Makruk. Play the traditional Chess variant of Thailand on Game Courier.
- Mastodon Chess (8x10). Standard pieces plus two Mastodons per side. A strategical big-board variant.
- Medusa Shogi. A Shogi variant of Pillars of Medusa, which is based on Turkish Great Chess.
- Multimove FIDE Chess. Each turn utilizes a number of points that get applied to movement.
- Multiple of 10 Checkmate. Variant where you can only checkmate or be checkmated on move 10, 20, 30, ect..
- Ninth Century Indian Chess. Differs from Shatranj in the setup and the Elephant's move.
- Pocket Mutation Chess. Take one of your pieces off the board, maybe change it, keep it in reserve, and drop it on the board later.
- Polymorph Chess. Knights and Bishops can morph into each other or into combined pieces.
- Pretentious Chess. Pieces can move as and demote to a Knight.
- Queen of the Night Chess. An over powered game on the Standard Board.
- Ready Chess. Play this game, where pieces cannot capture right after capturing, they have to be restored first!
- Relativistic Chess. http://www.chessvariants.org/boardrules.dir/relativistic.html.
- Royal Rumble. A 6 board all-out melee with random pieces, royals and starting positions.
- Scorpion Chess. Poisonous Scorpions instead of pawns.
- Separate Realms Chess. Pieces capture like normal FIDE pieces, but have limited moves that only take them to part of the board when not capturing.
- Shatranj Darwinian. A game that shows the evolution of today's classic pieces. Wazirs and Ferz evolve into modern pieces.
- Smaller Alice Chess. Missing description
- Swedish Hopper Chess. Features the Swedish Hopper.
- Switching Chess. In addition to normal moves, switch with an adjacent friendly piece.
- Takeover Chess Play-By-Mail game. Examine this game played in the Invent and Play contest! Drawn.
- Time Travel Chess. Play Time Travel Chess on the Game Courier!
- Triumvirate Chess. Uses three Knights. The last remaining opposing Knight must be checkmated as the King.
- Undecided Chess. Undecided Pawns change into orthodox pieces by moving like them.
- Valiant Chess. Knight pawns at the fifth rank have an additional jump move to empty square (with zrf).
- Warp Point Chess. Play this game! Knights are replaced by Warp Points that other pieces can move between.
- Zone X. Chess with a special central Zone, a new piece, and new moves.
Total items listed: 64