Revenge of Killer Sudoku 2: 150 Killer Sudoku puzzles

Same format, same difficulties, NEW puzzles! Another sequel in the Killer Sudoku series of books from DJAPE. Brand new puzzles, with the same intensity and intricacy as the old ones. There are no trivial puzzles in this book - the accent is again on moderate and difficult puzzles. Contents: - 100 Killer Sudoku - 10 Killer Sudoku X - 10 Killer Sudoku with diagonal cages - 30 ZERO Killer Sudoku (blank cages)