Printable Expert Sudoku

Set n4r20i. 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 5 3
1 7 8 2
6 3 1
8 7
8 6 1 3
9
4 3 5
4 2
9 1
Expert #2
9 8 1
7 6
1 7
4 1
4 5 7
8 3 6
3 8 2 5
2 1 5
5 6 3
Expert #3
5
8 1
6 2 3 9
2 4 5
3 4 7
7
9 3
8 1 5 6
3 6 4 7
Expert #4
5 6 2
3 1 9
6 7
3 6 2
8 1
4 8 2 3
1 6 4 5
8
4 9 1
Expert #5
3 5
6 2 5 1
9 8 7
4 6 9
2
7 9 6
2 3 7 9
3 8 6
7 9
Expert #6
1 3 6
9 7 5 8
4
6 1
8 1
7 4 2
5 7
5 4
9 6 8 3
Expert #7
9 6
8 6 5 2
5 8 7
2 9 3 5
5 3
1
2 8 6
8 4
9 3 4
Expert #8
6 4 7 8
2 3 1
9
4 5 8
6 4 2
7 3
8 6 2
1 5 4
9

Answers are on the last page of the PDF.

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Techniques for expert puzzles

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