Expert sudoku — printable sheet 20
Four expert puzzles, one page. Answer key: view answers.
3
7
1
8
4
6
2
5
7
8
9
3
6
3
2
1
5
9
8
2
7
1
8
4
4
9
6
5
1
4
3
4
9
8
5
2
7
6
4
8
9
8
3
5
5
1
8
1
8
2
7
5
3
6
1
4
2
5
4
8
2
1
6
9
4
6
4
2
1
5
9
7
2
8
4
6
9
1
3
7
1
2
5
7
8
9
4
3
7
6
3
1
4
2
3
7
8
5
7
9
3
9
4
6
1
2
7
3
4
5
1
6
Sheet 20 of 20 · all expert sheets