Binary Shift Puzzle vs Binairo

Binary Shift is a sleek, brain-twisting puzzle game inspired by the classic Lights Out. You’re presented with a glowing 4×4 matrix of 0s and 1s. Tap any tile and watch it — and its neighbors — flip between states. Simple? Try turning the entire grid to 0. Every move matters.

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.