Public puzzle
SE grade 9.9 Sudoku
9.9SE grade · 19 clues
By The Hardest Sudoku Team · Last updated
5
1
2
3
9
6
7
2
1
9
6
4
1
5
7
4
8
3
9
Givens only — solution not shown.
About this puzzle
An SE grade 9.9 Sudoku with 19 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.