('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'),