Slitherlink vs Binairo

Draw one clean loop with pure logic. Slitherlink is a classic line puzzle where number clues tell how many edges surround each cell. Connect the right edges, avoid branches, and close a single loop without guessing. HOW IT WORKS • Numbers show how many surrounding edges are part of the loop • The final line must be one continuous loop • No branches, crossings, or loose ends • Every puzzle is designed for a unique solution WHY YOU'LL KEEP PLAYING • 900 curated puzzles across Easy, Medium, and Hard • A fresh daily challenge with streak tracking • Guided practice and story rules for quick learning • Game Center leaderboards and achievements PLAY YOUR WAY • Full offline play • Home Screen widget for daily practice • Readable themes for light and dark play • VoiceOver-friendly labels, hints, and scalable text • Free to start, with premium content when you want more Perfect for fans of Sudoku, Hashi, Masyu, Nonogram, Minesweeper, and elegant deduction puzzles. Download Slitherlink and close your first loop.

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.