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6
8
5
4
7
4
6
9
8
1
7
1
9
2
7
5
8
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9
6
5
7
5
3
3
2
6
4
9
2
8
2024-10-25(Intermediate) Puzzles
Analyze number patterns carefully
Review candidates if stuck and reorganize.
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.