Tons of Killer Sudoku for Adults & Seniors: 1000 Easy to Hard Puzzles

Killer Sudoku (also called Sum Sudoku, Sumoku, Addoku, or Samunamupure) is a kind of hybrid puzzle that combine Sudoku and Kakuro puzzles.

This Killer Sudoku Puzzles book is packed with the following features:

- 1000 Puzzles from Easy to Hard for everyone in 3 Difficulty Levels: 333 Easy, 334 Medium, 333 Hard.

- Answers to every puzzle are provided.

- Each puzzle is guaranteed to have only one solution.

- Six puzzles per page (8.5 x 11 inches).

- Includes free bonus puzzles you can download book (Fitness for your brain: Word Search With Hidden Message: Train your brain anywhere, anytime - 102 Puzzles for Adults and Seniors).