Start the round
Look at the Sudoku game above. If you see a start, play, or new game button, press it first.
Time
00:00
Mistakes
0
Progress
56%
Rule
Every row, column, and 3 by 3 box needs each digit from 1 through 9 exactly once.
Notes
Candidate marks help you reason without committing a number too early.
Flow
Start from crowded rows and boxes, then let each confirmed digit remove possibilities nearby.
Sudoku FAQ
Fill the 9 by 9 grid so every row, column, and 3 by 3 box contains the digits 1 through 9 once. Start with cells that have only one possible value, then use notes to track candidates.
Notes are pencil marks for possible values. Toggle notes, choose a digit, and the small candidate appears in the selected empty cell without committing an answer.
Yes. Tap a cell, use the number pad, and use the directional controls when you want precise movement on smaller screens.
Yes. Use the d-pad or left stick to move, shoulder buttons to change the active digit, A to enter it, X for notes, B to erase, Y for a hint, and Start for a new puzzle.
Wrong entries are allowed so you can experiment, but they count as mistakes and are highlighted when they conflict with existing numbers.