Public puzzle
SE grade 6.6 Sudoku
6.6SE grade · 23 clues
By The Hardest Sudoku Team · Last updated
8
4
2
1
5
6
9
8
9
5
6
1
5
6
2
4
4
8
3
2
6
8
3
Givens only — solution not shown.
About this puzzle
An SE grade 6.6 Sudoku with 23 clues — hard, leaning on X-Wings and steady candidate elimination.
The SE grade is the canonical difficulty number from Sudoku Explainer — read how it works on the SE grade page.