Binary.1001

Binary.1001 is a challenging logic puzzle Chrome extension designed for quick mental workouts and entertaining downtime on commutes. Players fill a binary grid with 0s and 1s while following the rules: every cell must be 0 or 1; no more than two identical numbers in a row or column; each row and column has equal numbers of 0s and 1s; and every row and column is unique. Each puzzle has a unique solution, preventing guessing and encouraging careful deduction.

The game features more than 6,000 unique levels, grouped into several difficulty tiers. Each level contains 1,001 puzzles, starting with the easiest level and advancing to the next difficulty after completing 1,001 puzzles. New puzzles are designed to be solvable without guesswork and provide a satisfying brain-teasing challenge wherever you are.