Because you can never take chess variants too far.
  1. Knightmare Chess
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    Chess meets Magic: the Gathering. Move a piece, then play a card that changes a rule or allows a special ability. One of my favorite games of all time.
  2. Tile Chess
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    The chess pieces are the board spaces.
  3. Proteus
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    Dice that mutate from one piece to another.
  4. Rogue Chess
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    Cards let pieces do special moves.
  5. King Down
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    Total re-imagining of chess.
  6. Obstruction Chess
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    Chess with force fields. Actually pretty shitty pieces. Use the rules and proxy the obstructions.
  7. Shuuro
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    Build your army wargame style. Take the field with a traditional army, 14 pawns and a queen, or something equally ludicrous. The expansion, Toranga, adds two more players.
  8. Loka
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    An even more ludicrous version of Shuuro that adds random successes and traps.
  9. Musketeer Chess
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    A series of 10 new chess pieces and rules to play with them. The most "normal" variant on the list.
  10. PlunderChess
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    If you capture a piece, you get its move.
  11. Regimental Chess
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    Multi-board chess. Pieces are grouped into units that move and attack together
  12. Rooked!
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    An out-of-print print-on-demand card deck. Apparently, the designer put it on Game Crafter with a major misprint (one card front is actually the card back from another game), then disappeared.
  13. Bonus: MetaCheckers
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    A checkers variant with chess-like special moves.