Sudologic: Sudoku Solver

Stuck on a grid? You're missing a technique, not talent. Snap it or play it here: see where to look, why only one digit fits, then place it. The answer only if you ask. You finish it without guessing. A HINT, NOT THE ANSWER When you're stuck, get help without spoiling the grid. • Level 1, the technique: the area to look at and the logic to find. • Level 2, the proof: why only one digit fits. • Level 3, the move: the cell and the digit, only if you ask for it. YOUR PAPER PUZZLE, BY PHOTO A newspaper or puzzle-book grid won't give in? Take a photo of it or type it in. Sudologic reads the printed digits, checks the grid has a single solution, then helps you move forward one explained hint at a time. Your photo stays on your device. THE COMPASS Mid-game, the Compass lights up where to look. Place a wrong digit and its row, column or box lights up. You chase the logic, not the cell. 23 SHORT LESSONS, FROM 4×4 TO 9×9 Each lesson takes about 5 minutes: observe, understand, try it right away. Start on small 4×4 and 6×6 grids, where the logic is easy to see, then spot it again in 9×9. From hidden singles to pairs and triples, X-Wing, Y-Wing, Swordfish and Unique Rectangle. PUZZLES AT YOUR LEVEL • Puzzles sorted into tiers by the techniques they require, each with a single solution. • A daily puzzle. • Your path shows what you've mastered, what's in progress and what to review. A CALM GAME • Bauhaus-inspired design: clean shapes, bold colours, nothing to distract you. • Play with digits, or with shapes and colours on 4×4 grids. • No ads, no account, works offline. • VoiceOver, Dynamic Type and Dark Mode. • iPhone, iPad and Mac. FREE TO START The rules, the 4×4 chapter, the first 6×6 lessons, beginner puzzles, the daily puzzle and 3 grid analyses are free. Sudologic Complete unlocks the full path, every tier, unlimited hints, the full Compass and unlimited grid analyses: a yearly plan with a 7-day free trial, or a one-time lifetime purchase. Family Sharing included. By deduction, not by guessing. That's Sudologic. An app by Caliapps. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.michaeldardol.com/sudologic/en/privacy/