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Hard
1
4
5
1
4
3
4
6
2
2
4
1
5
2
4
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.