Playing logic puzzle on a daily basis helps to keep an active mind and players often see improvements in their overall concentration.

This Activity book is packed with the following features:

- 500 Hard Logic Puzzles (Sudoku, Kakuro, Hitori, Minesweeper, Masyu, Suguru, Binary Puzzle, Slitherlink, Futoshiki, Fillomino).

- Answers to every puzzle are provided.

- Each puzzle is guaranteed to have only one solution.

- Includes free bonus puzzles you can download book (Tons of Sudoku Puzzles for Adults & Seniors)

- Includes free bonus puzzles you can download book (Word Search With Hidden Message: 102 Puzzles for Adults and Seniors)