Binary Puzzle (also known as " Binairo", "Takuzu", "Tohu wa Vohu") is a logic puzzle with simple rules and challenging solutions. It is played on a rectangular or square grid.
This Logic Puzzles book is packed with the following features:
- 500 Binary Puzzle (10x10) from Easy to Hard.
- 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)