Green belt sudoku
Auteur :
Rios, Michael
Éditeur :
Sterling Publishing Co Inc
ISBN :
9781402735967
Date de publication :
16 mars 2006
Dimensions :
21,0 x 13,5 x 1,5 cm
Poids :
218 g
Langue :
Anglais
Pays d'origine :
USA
Taking a page from karate - another Japanese art - each title in the series is graded by colour: White Belt for easy, Green Belt for medium level, Brown Belt for hard, and Black Belt for the super-tough solvers. Each title also contains 300 puzzles.