Printable Expert Sudoku

Set io77nn. 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 2 8 1
8 5 6
1 9
7 9 2
5 7
9 4
8 3 4 7
6
1 3 7 9
Expert #2
2 9 7 3 8
8 2 4
2
6 8
8 2 3 6 1
7 3
3 1 4
6
1 7 5
Expert #3
9 6 1 4
2 7 9 3 8
5 2
3 7 4 9
8 5
4
5 8
4 1 9 2
Expert #4
6 7 4
5 3
9 7
3 4 7 9 5
5 3
9 6
5 3
4 2
1 6 2
Expert #5
2 7
4 3 1 6
9 8
8 7 3 1
1 5 4
5 1 8
6 4
7 9 3
3 5 7
Expert #6
2 6 3 5
5 7 2
4 8 9
4 1 9 8
7
1 3 6
8 5
2 3 9
Expert #7
3 8 2
7 1 3
4 1
2 8 4
9 7
3 9 7
7
9
6 4 1 2
Expert #8
8 3
1 9
4 1 2 8
8 6 3
7 4 9
6 8 5
7 8
1 7 9
4 2 7

Answers are on the last page of the PDF.

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Techniques for expert puzzles

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