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Hard
Daily challenge May 19, 2026 Back to calendar
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New game

Fill every row, column, and 2×3 block with the digits 1–6 (no repeats). The grid is 6×6—smaller than classic Sudoku but the same kind of logic.

About Hard

Fewer clues—use notes and pairs; still logic-only on ProPuz.

How to play · Glossary · Classic 9×9 Sudoku