OhMaSudoku

When you're stuck, OhMaSudoku doesn't just fill in the answer. It shows you the technique you can use right now. Hints in two steps First it shows you where to look. If you still can't see it, it names the technique and explains why it works. From pointing and naked pairs to X-Wing and XY-Chain, it marks all 24 techniques right on the board. 6,700 puzzles • 5,500 classic puzzles in seven levels: Easy, Normal, Tricky, Hard, Expert, Master and GOAT • 1,200 variants: Killer, X Sudoku, Jigsaw and Windoku • Every puzzle has one solution. Every puzzle except GOAT can be solved with techniques alone, no guessing. Daily puzzle A new puzzle every day for each level. Everyone gets the same puzzle on the same day, so it's easy to compare results. Past days are in the calendar. Learn the techniques Read how each technique works, then find it yourself on a real puzzle. Comfortable to play • Cell first or number first • Notes, candidates, select several cells at once, color cells • Show mistakes right away, check when the board is full, or end after 3 mistakes • Keep several games saved • Stats, scores and badges, plus Game Center achievements and daily leaderboards • Dark mode, large text, theme colors • 한국어, English, 日本語, 简体中文, 繁體中文, Español, Português, ไทย Ads There's a banner at the bottom and ads between games. Full-screen ads never appear while you're solving. You get 3 free hints per game, and you can watch an ad for more. One purchase removes all ads and gives you unlimited hints. No account Your records stay on this device and carry over to your other devices through iCloud on the same Apple Account. You can also export a file from the Stats screen.