Printable Expert Sudoku

Set blfb00. 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
7 9
4 9 8
2 1 4
1 6 7
3 1 2
6 5 4
9 8 2
1 3
2 5
Expert #2
9 8 5
3 1 4
1 3 8 6 5
4 6 3 7
4
8 2 3
6 9 1
5
3 9 6
Expert #3
3 6
2 9 7
3
8 2
7 8 5 6 1
1 5
7 8 3
1 3 5
6 4 2
Expert #4
3 6 1
8 6
5 2 3
5
5 9 4 8
6 1
1 3 2
5 9
2 6
Expert #5
7 8
2 7 3
2 3 6 9
1 2 9
6 8 4
1 6 5 4 3
3 6 4
5 1
1
Expert #6
9 7
3 2
1 4 9
5 6
1 4 7
8 1 3
5 7
2 7 1 5 6
6 8
Expert #7
5 2
5 1 6
2 4 7 3
8 3 6
9 7
2 1 8
4 7 3
2 7 8
8 1
Expert #8
8 9
7 6 1 3
5
1 8 2 5
9 5
4 6 8 7
4 3 9 8 2
5
6 1

Answers are on the last page of the PDF.

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Techniques for expert puzzles

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