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8
6
7
2
8
4
1
9
8
5
8
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4
1
3
6
5
3
9
2
9
2
6
3
4
7
3
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7
5
8
2024-08-28(Intermediate) Puzzles
Puzzles suitable for logical challenges
Postpone complex squares and start with easier numbers.
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.