Printable Expert Sudoku

Set aiseo4. 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
2 1
7 9 2
6 4
2 5 8 7 6
4 6 7
3
9
1 8 2
6 5 2
Expert #2
1
7 9 1 5
3 7 8
8 5 7 6
8 9
2 4 6
4 2
2 5 6
1 4 9 5
Expert #3
6 7 5 4
7 3 8
8 6
5 1 4
7 3 9 1
8 5
2 4 3
4 1 6
Expert #4
3 1 9
2 6
3 1
7 5 8
3 7 6
4 8 3 6 7
1 5 8 9
6 4 7
4 8
Expert #5
2 1
1 7 6 3
5 3
6
2 9 4 1
4 1 9 5 8 6
3 2 1
5 3
9
Expert #6
7 8
6 3 8
1 2 4 9
2 4
3 5 2
7 1 6
2 6
2 1
3 8 4
Expert #7
3 6 1 9
2 6
1 3 7 2
5 8
5 9
7 2 4
7 8
1 4 6
6
Expert #8
3 6 1
6 1 5 3
7 9 6
5 8 6 7
5
4 6
7 8 4 5
1
2 9 7

Answers are on the last page of the PDF.

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Techniques for expert puzzles

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