Librería Samer Atenea
Librería Aciertas (Toledo)
Kálamo Books
Librería Perelló (Valencia)
Librería Elías (Asturias)
Donde los libros
Librería Kolima (Madrid)
Librería Proteo (Málaga)
Divided into three sections, this book gives some historical notes, a step-by-step solution of a sample alphametic, and some general hints on the solution of alphametics. It presents a challenging diversion to mathematics enthusiasts.