Web = practice. Your best stays in this browser only. Leaderboards, the daily board, hearts and continues are in the app.
How to play
Sudoku
Fill the blanks with 1–9. No number may repeat in a row, a column or a 3×3 box. There is exactly one solution.
Tap a cell · digit
Pick a cell, then tap a digit below. Turn on notes to pencil in candidates.
Keyboard
🖱 On a computer, click to tap and drag to swipe.
♔ No ranking — just play
AI matches and classic puzzles have no leaderboard. The app keeps your own record instead: average, best and games played.