Librería Samer Atenea
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.