('Crazyhouse', 'Captures reborn'),
('Cylinder', 'Neverending rows'),
('Diamond', 'Rotating board'),
('Doublearmy', '64 pieces on the board'),
('Doublemove1', 'Double moves (v1)'),
('Doublemove2', 'Double moves (v2)'),
('Crazyhouse', 'Captures reborn'),
('Cylinder', 'Neverending rows'),
('Diamond', 'Rotating board'),
('Doublearmy', '64 pieces on the board'),
('Doublemove1', 'Double moves (v1)'),
('Doublemove2', 'Double moves (v2)'),