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Medium
6
1
5
2
3
4
8
9
4
3
5
9
2
2
7
9
1
9
4
5
7
8
5
5
6
3
4
8
8
3
1
4
9
1
7
5
4
9
6
8
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