Hardest Sudoku

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SE grade 7.3 Sudoku

7.3SE grade · 20 clues

By The Hardest Sudoku Team · Last updated

Givens only — solution not shown.

About this puzzle

An SE grade 7.3 Sudoku with 20 clues — expert, where wings and chaining decide the solve.

The SE grade is the canonical difficulty number from Sudoku Explainer — read how it works on the SE grade page.

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