Sudoku Binary - 200 Normal Puzzles 7x7 (Volume 30)

Binary puzzle (also known as "Binairo", "Takuzu", "Tohu wa Vohu") is a logic puzzle that you can solve by using only zeros and ones.
The rectangular or square grid should fill the numbers in accordance with the following rules:
- Each row and each column contain the same number of digits "1" as digits "0" (or one more for odd sized grids).
- The same number can only be in no more than two cells in a row.
- Each line must be unique, and each column must be unique. The puzzle book contain:
- 200 Puzzles
- Handy 6 x 9 inch Book Layout
- 2 Puzzles per Page
- Ideal for Beginners In the book you will find a description and examples of solutions for all puzzles.
The book is for those who like logic and math problems. Decide, developing and improving.