('Checkered', 'Shared pieces'),
('Chess960', 'Standard rules'),
('Circular', 'Run forward'),
+ ('Coregal', 'Two royal pieces'),
('Crazyhouse', 'Captures reborn'),
('Cylinder', 'Neverending rows'),
('Dark', 'In the shadow'),
('Rifle', 'Shoot pieces'),
('Recycle', 'Reuse pieces'),
('Royalrace', 'Kings cross the 11x11 board'),
- ('Rugby', 'Score a try'),
+ ('Rugby', 'Transform an essay'),
('Shatranj', 'Ancient rules'),
('Suicide', 'Lose all pieces'),
('Suction', 'Attract opposite king'),