00:00
0
Medium
2
7
6
2
8
4
1
7
9
2
5
3
1
6
2
8
4
1
6
5
2
9
8
4
5
2
8
1
3
7
1
3
5
9
4
6
5
7
1
New game
Fill every row, column, and 3×3 box with the digits 1–9 (no repeats). Select a cell, then use the number pad or keyboard. Turn on Notes to mark candidates; use Hint if you're stuck.
About Medium puzzles
A balanced challenge for daily practice. Once you know the basics, this level uses simple logic and a few hidden singles. Good for commuters and anyone who wants a step up from Easy.
How we generate puzzles: Every puzzle is created for this session and has exactly one solution. Difficulty is set by how many numbers we leave in the grid—fewer givens means a harder, logic-based challenge. Read more.
Who it's for: Pro Sudoku is free, with no sign-up, for all ages. Whether you're a beginner or an expert, you can play on any device. About us · Techniques