('Alice', 'Both sides of the mirror'),
('Allmate1', 'Mate any piece (v1)'),
('Allmate2', 'Mate any piece (v2)'),
+ ('Ambiguous', 'Play opponent''s pieces'),
('Antiking1', 'Keep antiking in check (v1)'),
('Antiking2', 'Keep antiking in check (v2)'),
('Antimatter', 'Dangerous collisions'),
('Berolina', 'Pawns move diagonally'),
('Cannibal', 'Capture powers'),
('Capture', 'Mandatory captures'),
- ('Checkered', 'Shared pieces'),
+ ('Checkered1', 'Shared pieces (v1)'),
+ ('Checkered2', 'Shared pieces (v2)'),
('Checkless', 'No-check mode'),
('Chess960', 'Standard rules'),
('Circular', 'Run forward'),
('Crazyhouse', 'Captures reborn'),
('Cylinder', 'Neverending rows'),
('Doublearmy', '64 pieces on the board'),
+ ('Doublemove1', 'Double moves (v1)'),
+ ('Doublemove2', 'Double moves (v2)'),
('Dynamo', 'Push and pull'),
('Eightpieces', 'Each piece is unique'),
('Enpassant', 'Capture en passant'),
('Knightrelay2', 'Move like a knight (v2)'),
('Losers', 'Get strong at self-mate'),
('Magnetic', 'Laws of attraction'),
- ('Marseille', 'Double moves'),
('Maxima', 'Occupy the enemy palace'),
('Monster', 'White move twice'),
('Omega', 'A wizard in the corner'),
('Rugby', 'Transform an essay'),
('Schess', 'Seirawan-Harper Chess'),
('Shatranj', 'Ancient rules'),
+ ('Sittuyin', 'Burmese chess'),
('Suicide', 'Lose all pieces'),
('Suction', 'Attract opposite king'),
('Takenmake', 'Prolongated captures'),