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3
8
9
2
9
2
6
7
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7
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8
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7
1
3
8
9
6
2
6
1
8
9
4
6
1
5
7
3
4
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1
6
5
1
3
9
2024-04-10(Beginner) Puzzles
Develop number placement skills gradually
Double-check each number after placing it.
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.