Expert sudoku — printable sheet 16
Four expert puzzles, one page. Answer key for this sheet.back to the puzzles.
8
9
4
2
3
7
6
5
1
3
6
7
1
9
5
8
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2
1
2
5
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7
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9
3
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8
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2
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7
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2
4
8
9
7
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3
1
5
7
5
6
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4
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2
8
9
6
7
9
5
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8
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3
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5
8
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9
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7
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3
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6
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8
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3
1
4
5
9
8
6
7
9
8
4
7
6
2
3
1
5
6
7
5
1
8
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4
9
2
7
6
9
5
1
4
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3
8
3
4
2
8
9
7
6
5
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1
5
8
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3
6
9
7
4
5
1
3
9
2
8
7
4
6
8
9
7
6
4
1
5
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3
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6
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7
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8
9
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8
9
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6
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7
8
6
4
1
3
7
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2
9
7
9
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5
6
2
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8
9
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6
7
1
5
3
8
4
5
7
8
3
4
9
2
6
1
1
4
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6
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8
7
9
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6
5
7
2
8
1
9
4
3
3
8
9
4
5
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1
7
2
4
1
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9
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3
8
5
6
6
4
8
3
2
7
1
5
9
5
7
9
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4
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2
6
3
3
2
1
9
6
5
7
8
4
7
6
3
5
1
2
4
9
8
1
5
2
4
8
9
6
3
7
9
8
4
7
3
6
5
2
1
2
3
7
6
9
4
8
1
5
8
9
5
2
7
1
3
4
6
4
1
6
8
5
3
9
7
2
Sheet 16 of 20 · all expert sheets