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About Clue Sudoku
In Clue Sudoku puzzles, some cells display the possible numbers (clues) that could fit in that cell.
These clue numbers narrow down the options for each cell. For example, here's a cell with clue numbers 2, 6, and 7:
2
3
4
5
6
7
Rules
- Cells with clue numbers must be filled with one of those clue numbers.
- Empty cells without visible clues can contain any number from 1 to 9.