Play Sudoku Online
Sudoku Ultra
A clean, fast Sudoku experience with quality puzzle generation, staged coaching hints, daily challenge rankings, resume-safe sessions, and keyboard-first controls.
Time 00:00
Mistakes 0
Hints 0
Progress 0%
Mode medium
Accuracy 100%
Auto-check On
How to Solve Faster
Fill each row, column, and 3x3 box with digits 1-9 exactly once.