Revenge of Killer Sudoku

Welcome to volume 10 of the most popular series of books with Killer Sudoku puzzles - now even more fun!
To celebrate the 10th volume of the series, I've added 200 puzzles (instead of the usual 150) this time!
Contents: 100 Killer Sudoku50 Killer Sudoku 9x9 using 0 to 830 Diagonal Killer Sudoku X20 ZERO Killer Sudoku (blank cages)...and some bonus puzzles!
Difficulty levels are EASY-COOL-THINKER-BRAIN-IQ.
A majority of puzzles are THINKER. Almost all Zero Killer Sudoku puzzles are level IQ.
All puzzles in this book are NEW.
Have fun and enjoy