Elunoku: Sudoku Puzzle

Solve a classic 9×9 Sudoku whenever you have a few quiet minutes. Elunoku combines four difficulty levels, a fresh daily challenge, and offline play—no account required. WHAT YOU CAN PLAY • Classic 9×9 Sudoku • Easy, Medium, Hard, and Expert difficulties • A new daily challenge TOOLS THAT KEEP YOU MOVING • Notes for candidate numbers • Undo and erase controls • Helpful hints when you get stuck • Automatic local saving so you can continue later BUILD YOUR ROUTINE • Track completed puzzles and solving time • Grow your daily streak • Unlock achievements • Complete special challenge collections • Choose from a collection of visual themes Elunoku keeps its core puzzles, saved progress, hints, daily challenges, achievements, and settings available offline. Play in English or Traditional Chinese and solve at your own pace.