The Mini Book Of Logic Puzzles 2020-2021. Binary 9x9 - 240 Easy To Master Puzzles. #2

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. 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.