Soldoku

Soldoku reinvents the Sudoku you love by blending it with the thrill of a card game. Instead of just tapping numbers, you draw from a deck and play your cards onto the board — every move counts. Fill the 9×9 grid so each row, column, and 3×3 box contains the numbers 1–9, with no repeats. Simple to learn, satisfying to master. WHY YOU'LL LOVE SOLDOKU • Card-based gameplay — draw from the pile and place cards strategically. A fresh twist you won't find in ordinary Sudoku apps. • Four difficulty levels — Easy, Medium, Hard, and Extreme. From a relaxing warm-up to a real brain-bending challenge. • 50 levels — work through a journey that ramps from Easy to Extreme, earning up to three stars on each. Three stars means no mistakes and no hints. • 3 mistakes, 3 discards, 3 hints — play smart and manage your resources to win. • Note mode, undo, and erase — pencil in candidates and experiment freely. COMPETE AND KEEP COMING BACK • Game Center leaderboards — compete on fastest win and total wins for every difficulty, plus highest level reached. Filter by this week or all time. • Daily goals — three fresh goals every day, each worth a bonus heart. • Hearts — start a level with a heart, and win it back when you solve it. Hearts refill over time, and goals and achievements grant more. • Share your results — post a card of your win or your leaderboard rankings. LEARN TO SOLVE, NOT JUST TO TAP • Strategies guide — 13 interactive lessons that teach you real Sudoku technique, hands-on. • Start with the basics — Scanning, Naked Single, Hidden Single, and Note-Taking. • Then go deep — Naked and Hidden Pairs and Triples, Pointing Pairs, Box/Line Reduction, X-Wing, Y-Wing, and Swordfish. • Every lesson is played, not read — you tap through the technique on a real board. TRACK YOUR PROGRESS • Detailed statistics — games played, win rate, current and longest streaks, total time played, hints used, and your fastest solve, broken down by difficulty. • Achievements — unlock rewards like First Win, No Mistakes, Streak Master, Perfect Game, and Hintless Hero. MAKE IT YOURS • Themes — choose Light, Dark, System, or build your own Custom theme. • Custom colors — personalize the background, text, grid, numbers, notes, and highlights. • Font styles — System, Serif, Monospace, or Handwriting. • Play your way — pick "Cell First" or "Card First" input, toggle auto-removing notes, related-cell highlighting, and haptics. DESIGNED FOR EVERYONE • Guided tutorial walks you through every part of the board, step by step. • Full VoiceOver support throughout. • Beautiful, modern interface built for both iPhone and iPad. • Play offline, anytime — no internet needed for anything but the leaderboards. • Free, with no ads, no in-app purchases, and no tracking. Whether you want to unwind with an Easy puzzle, learn a technique that finally cracks Extreme, or chase the top of the leaderboard, Soldoku gives your daily number fix a brand-new edge. Draw your hand and start solving today! Developed by Connor Benedict.