Binairo vs Binairo

Binairo is a clean binary puzzle and 0-1 logic game for quick daily brain training. Fill the grid with zeros and ones, keep each row and column balanced, avoid triples, and solve by deduction instead of guessing. Play the daily challenge, continue through curated levels, use undo and hints when needed, and compare your times on Game Center leaderboards. The interface is calm, fast, and built with VoiceOver support for accessible play. Start with the free puzzles, then unlock the full premium library when you want more handcrafted binary grids.

Fill the grid with 0s and 1s. Just three simple rules. Binairo — also known as Takuzu or Binary Puzzle — is pure logic. No luck, no math. A calm, beautifully minimal way to sharpen your mind, anytime, anywhere. ■ How to play Put a 0 or a 1 in every cell. Follow three rules and fill the whole board: - Never three of the same number in a row or column - Each row and column has an equal count of 0s and 1s - No two rows and no two columns are identical No prior knowledge needed — most people are playing within minutes. ■ Features - Always solvable by logic: every puzzle is verified in-app to have exactly ONE solution, so you never have to guess. - Four difficulties: from a gentle 6x6 to a demanding 12x12. - Daily Challenge: everyone plays the same puzzle each day, with streaks and a calendar to keep the habit going. - Two display styles: numbers (0/1) or two-color stones — your choice. - Gentle assists: mistake highlighting, remaining counts, undo, and hints. - Fully offline: play anywhere, even with no signal. - Private by design: your records stay on your device. ■ Great for you if… - You've mastered Sudoku and want your next logic fix - You love pure logic with zero luck involved - You're tired of cluttered, ad-heavy, subscription puzzles - You want a calm mental reset on the commute, on a break, or before bed - The idea of 0s and 1s makes you smile ■ Privacy & peace of mind - No account or sign-up required. - No servers, no cloud — the app is fully offline. - Your play records are stored only on your device and are never uploaded.