Public puzzle
SE grade 9.0 Sudoku
9.0SE grade · 18 clues
By The Hardest Sudoku Team · Last updated
3
7
5
7
1
9
8
4
5
7
3
2
1
9
5
3
6
4
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.