Librería Samer Atenea
Kálamo Books
Librería Elías (Asturias)
Librería Kolima (Madrid)
Librería Proteo (Málaga)
There are three Sudoku variations in this puzzle book - easy, medium and hard. Each variation requires a unique challenge that can only be accomplished through careful evaluation of given patterns. Make sure you pack a lot of patience and focus when solving the puzzles in this book. Go ahead and grab a copy today.