Sudoku Solver, Live Duels & Photo Scan
We've packed the last month with features players asked for. Meet the Sudoku Solver — paste any puzzle and watch it solve step-by-step using real human techniques (Naked Singles, X-Wing, and more). Even better: scan a printed puzzle with your camera. Just point, and our OCR engine reads the grid in seconds, handling low-res webcams, finger shadows, and even mirrored previews.
Ready for competition? Live Sudoku launches as our first real-time multiplayer mode — challenge a stranger to a speed duel and race on the same puzzle. Evil difficulty joins our standard four for those who want the ultimate challenge.
Kids Sudoku got a makeover too: mode cards now show pictures instead of walls of text, and difficulty appears as stars for quick scanning. Both iOS and Android apps now speak 14 languages, and we've squashed the double-notification bug on Apple.