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6
8
7
9
1
7
8
2
9
2
6
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6
6
8
4
3
7
5
5
9
3
4
1
7
6
5
3
4
2
6
2024-07-10(Intermediate) Puzzles
Slightly challenging but fun puzzles
Arrange numbers effectively to progress.
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.