20 Medium Sudoku
Twenty medium 9×9 boards. Expect to need pair-based reasoning to clear most of them.
Tip: opens a print-ready booklet — press Cmd/Ctrl+P, then "Save as PDF".
Preview boards
6
8
1
2
4
2
1
8
6
9
5
1
2
4
6
4
5
1
8
3
1
2
5
4
1
2
8
6
9
4
9
3
6
2
9
5
4
9
1
2
1
4
8
6
9
3
7
5
4
7
9
7
1
8
2
5
3
1
7
2
4
5
1
7
7
2
4
9
5
5
6
4
1
2
8
6
4
9
3
4
6
6
5
1
8
7
4
5
1
6
6
5
8
3
6
9
2
8
5
6
2
7
3
4
3
6
1
2
7
4
2
5
3
2
5
6
1
8
6
8
3
4
7
8
6
5
2
3
Who this pack is for
Regular solvers.
When to use it
- Lunchtime sessions
- Weekend long walks (printed in advance)
- Pattern-recognition practice
Tips for printing and solving
- Notes mode is your friend on Medium.
- If you stall, mark candidates for one digit at a time across the whole board.