Killer Sudoku 9x9 - Easy to Hard - Volume 1 - 270 Puzzles

Become a master in solving Killer Sudoku 9x9. After solving all the puzzles in this book, you will be a Killer Sudoku Pro. You start with easy Killer Sudoku puzzles and you gradually build your way up to extremely hard Killer Sudoku puzzles.

Killer Sudoku 9x9 - Easy to Hard is a collection of 270 puzzles:

• 72 easy Killer Sudoku 9x9 puzzles
• 72 medium Killer Sudoku 9x9 puzzles
• 72 hard Killer Sudoku 9x9 puzzles
• 54 extra logic puzzles

I guarantee that every logic puzzle in this Killer Sudoku puz...