Adult Activity Book: 500 Hard Logic Puzzles (Sudoku, Tridoku, Masyu, Hakyuu, Battleships, Fillomino, Suguru, Creek, Numbrix, Binary, Minesw (Paperback) (ISBN-13: 9781650102511)

This Medium Logic Puzzles book is packed with the following features:

- 500 Hard Adults Puzzles (48 Sudoku, 48 Tridoku, 36 Masyu, 32 Hakyuu, 48 Battleships, 36 Fillomino, 48 Suguru, 40 Creek, 48 Numbrix, 36 Binary, 48 Minesweeper and 32 Futoshiki).

- 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)