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9
2
7
5
3
6
4
3
9
2
8
5
5
4
6
2
3
4
5
1
8
3
2
5
9
7
4
3
8
4
1
9
1
5
8
2
4
2
9
6
3
2024-10-11(Beginner) Puzzles
Solve puzzles while thinking of number positions
If unsure, lightly mark possible numbers and return later.
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.