Public puzzle
SE grade 9.0 Sudoku
9.0SE grade · 18 clues
By The Hardest Sudoku Team · Last updated
2
3
4
8
7
1
7
5
2
8
3
4
3
9
4
1
8
6
Givens only — solution not shown.
About this puzzle
An SE grade 9.0 Sudoku with 18 clues — diabolical, broken open only by forcing chains.
The SE grade is the canonical difficulty number from Sudoku Explainer — read how it works on the SE grade page.