Binary - 120 Easy To Master Puzzles 7x7 - 4 (Binary Puzzle Book 7x7)

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. Read more Continue reading Read less