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)
