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9
1
5
8
3
4
9
3
5
8
1
6
5
3
2
6
9
7
1
2
9
3
2
1
7
8
3
2024-02-27(Advanced) Puzzles
Tackle difficult Number Place patterns
Review previous steps if stuck and correct logically.
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.