('Hidden', 'Unidentified pieces'),
('Hiddenqueen', 'Queen disguised as a pawn'),
('Knightmate', 'Mate the knight'),
- ('Knightrelay', 'The knight transfers its powers'),
+ ('Knightrelay1', 'Move like a knight (v1)'),
+ ('Knightrelay2', 'Move like a knight (v2)'),
('Losers', 'Get strong at self-mate'),
('Magnetic', 'Laws of attraction'),
('Marseille', 'Move twice'),