Printable Expert Sudoku

Set aion4b. 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
5 7
4 1
7 2 4 9
4 8
6 9 5 3
3 7 9
6 1
2 3
8 7 6
Expert #2
8 9
3 6 7
6 1 2
9 8
2 7 9
5 6 4 2
9 2 3
7 2
8 6
Expert #3
2 4 6
4 1 5
9 5 1 8
3 8
9 5
7 6 2
5 3
9 1
3 4 7 8
Expert #4
6 3 7
1 5 2 4
9 2 5
6 8
7 3
4 2 5
7 2
9 8 3
1 4
Expert #5
3 7 1
7 4
1 6 9 3
3
5 2
2 3 5 9 6
8 2 1 4
4 6 7
5 8 9
Expert #6
1 7
2 4
8 6
5 7
2 9 6 1 7
3 2
8 5 1
2 5 4
7 6 9
Expert #7
2 9
7 8 5
8 3 6
5 9 6 1
1 3
4 2 7
6 7 8
1 5 3
Expert #8
9 1 6 7
7 3 9
3
8 5 1 2
6 8
7 4
1 6 5
8 5
1 4 3

Answers are on the last page of the PDF.

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Techniques for expert puzzles

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