Printable Expert Sudoku

Set 1sd9u13. 8 puzzles with an answer key, ready to print.

Expert puzzles are our hardest tier, with sparse grids usually in the mid-20s for givens. Expect to fill in every candidate and hunt for x-wings and swordfish. A printed copy and a sharp pencil is the classic way to tackle them.

Each free PDF has 8 puzzles, four to a page on US Letter paper, plus an answer key with every solution. Every puzzle has exactly one solution. A new set appears here every day, or you can grab a different set any time.

Puzzles in this set

Expert #1
8 5
9 1 7
6 2
3 9 1
8 2
5 6 3
8 6 1
3 7 1 4
5
Expert #2
9 4 7 5
8 3 9
5 3 8 7
4 5 8
2 7
8 1 3 4
9 5 6
1 9
Expert #3
4
9 8
3 6 1 7
5 2 9 3
2 4 7 5
7 6 9
7 2 8
9 6
Expert #4
6 3 4
7 5
5
6 2
8 6
2 7 9 3 1
5 2
8 5 6 9
1 7 9 3
Expert #5
4 6
5 2 7 9 8
4 1
2 6
8 1 7
9 8 2
8 3 9
9 5
7 5
Expert #6
4
5 1 6 3
3 7 6
3 2 9
4 1
3 5 1
9 5
6 4 2 1
9 2 7
Expert #7
3 6
8 3 1 2
6 2 8 3
9 5
8 2 7 6 4
6 7 3
1 2 4
9 6
Expert #8
3 6 4
8 1 4
2 1 9 8
6 9
6 7 2 5
8
8 3 1 6
2 6 4
5

Answers are on the last page of the PDF.

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Techniques for expert puzzles

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