Every day, a new free binary puzzle appears on Logicus, ready to be solved online. The daily puzzle is challenging, but in addition, there are 1200 other binary logic puzzles available in various sizes and difficulty levels.
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Bluesky
Binary puzzles have become a popular logic game worldwide. So much that binary puzzles are also known as Binairo or Binero, Takuzu, Tohu-Wa-Vohu, Eins und Zwei, Binoxxo, Zernero, Tic-Tac-Logic, and Binary Sudoku in different parts of the world. Binary puzzles are logic puzzles involving placement of two symbols, often 1s and 0s, on a rectangular grid. The objective is to fill the grid with 1s and 0s, where there is an equal number of 1s and 0s in each row and column and no more than two of either number adjacent to each other. Additionally, there can be no identical rows or columns. Similar to Sudoku, each puzzle begins with several squares in the grid already filled.
Each row and column must contain an equal number of 0s and 1s.
No more than two identical numbers may be adjacent (vertically or horizontally).
Each row and column must be unique within the grid.
Look for double numbers next to or below each other. The cells next to doubles can only contain the opposite number.
If there's a free space between two identical numbers, it must always be the opposite number.
There must be an equal amount of 0's and 1's in a row or column. Count! If there are already enough 0s, the remaining cells must be 1s (and vice versa).
Each row and column must be unique. If you're only missing a few cells look for other rows or columns that are simlar and enter the opposite numbers.
Testing for rule breaks involves mentally placing the last 0 or 1 in a row or column and checking if it forces the remaining cells to violate the rules, allowing you to deduce the opposite number instead.
Each puzzle has a unique solution. Using the rules above you should never have to guess.