('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'),
('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'),