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6
4
5
2
3
1
8
9
2
1
7
1
6
5
6
8
4
7
1
6
7
9
2
9
3
7
2024-09-07(Advanced) Puzzles
Enjoy the ultimate challenge in Number Place
Consider order and possibilities while solving.
Tips for Solving Sudoku
- Start with squares with fewer numbers: Begin with rows, columns, or blocks that already have more numbers filled; fewer candidates make it easier to solve.
- Pencil marks (notes): For beginners, write possible numbers in small font in empty squares for reference.
- Review: If stuck, check for duplicate numbers or rule violations.
- Basic rule: Do not repeat the same number in the same row, column, or 3x3 block.