Printable Expert Sudoku

Set 1xaja9o. 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
6 3 4 2
5 4
8 7 9
8 9 6
3 7 1 2
3 2 4 8 5
4 3
1 3
Expert #2
8
9 3 5
6 2 3
7 6 2
8 4 3 6
5 2 9
4 9 7
1
8 7 6 1
Expert #3
8 3
4 7
1 6 5 8
9 1 4
5
8 3 6 9
6 2
7 8
4 2 8
Expert #4
4 8 9 1
9
9 6 2
3 2 8 9
6
1 2 5
2 8 7
6 4 1 8
5 6
Expert #5
2
6 7 2
8 3 4 9
7 4
3 6 1
6 1 9
3 1 9
9 5 2 8
5 2
Expert #6
6 4 8
2 9 4
5 8 3 2
1 8 2
7 1 6
3
4 2 1
5 1 9
Expert #7
1 6
5 1 7 2
8 7
4 6 3 9
4
6 7
3 9 5 4
8 5 7
6
Expert #8
8 5 4 1
5 8
1
1
8 2
1 7 9 5 3 4
5 2 7 6
6 9
4 7 3 9

Answers are on the last page of the PDF.

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Techniques for expert puzzles

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