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7
9
3
8
8
6
9
7
2
2
5
7
4
5
4
8
2
8
5
6
4
1
4
1
3
8
5
6
6
4
3
1
5
2
8
9
8
6
9
1
3
2024-02-07(Beginner) Puzzles
Number Place suitable for first-time solvers
Pay attention to obvious numbers that can be placed immediately.
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.