Public puzzle
SE grade 9.3 Sudoku
9.3SE grade · 18 clues
By The Hardest Sudoku Team · Last updated
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5
Givens only — solution not shown.
About this puzzle
An SE grade 9.3 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.