Public puzzle
SE grade 6.6 Sudoku
6.6SE grade · 23 clues
By The Hardest Sudoku Team · Last updated
4
2
4
8
1
7
3
3
4
7
9
9
7
5
1
5
4
8
9
2
6
5
7
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.