Binary.1001 is a challenging logic puzzle that helps relieve stress and pass the time when you are on a bus, on an airplane, or simply have nothing to do. Continuous puzzle solving also helps increase IQ levels and helps prevent age-related brain diseases. According to studies, people who solve puzzles from time to time are less susceptible to diseases such as senile dementia and Alzheimer's disease. In our program, we have created for you more than 6 thousand unique levels. All levels are divided into different levels of difficulty. Each difficulty level contains 1001 puzzles. If this is your first time playing this game, try the very first level of the easiest level of difficulty. If you can easily solve level 1001, go to the next level of difficulty.

Rules

In this puzzle, there are only zeros and ones, some of the cells are already filled, the rest must be filled by you. Your goal is to determine which cells are zeros and which are ones.

Each puzzle must be solved in accordance with the following rules:
* Each cell must contain zero or one.
* No more than two similar numbers below or next to each other are allowed.
* Each row and column must contain an equal number of zeros and ones.
* Each row is unique, and each column is unique.

Each puzzle has only one solution. You can always find this solution without guessing.

Good luck!

New in this version

Night mode and undo button were added.