Librería Desdémona
Librería Samer Atenea
Librería Aciertas (Toledo)
Kálamo Books
Librería Perelló (Valencia)
Librería Elías (Asturias)
Donde los libros
Librería Kolima (Madrid)
Librería Proteo (Málaga)
67 Seven Chess is a chess puzzle book for everyone, ages 6,7, or 67. Enjoy these 67 chess puzzles with your family and friends. The book includes QR codes, which provide solutions, explanations and a link to an online analysis board.