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7
8
6
7
9
2
5
2
1
4
8
6
3
1
9
7
3
5
1
6
5
1
6
8
9
6
3
1
1
2
6
8
7
3
9
5
2
1
6
7
8
2024-08-09(Beginner) Puzzles
Step-by-step approach to solving
Break the puzzle into smaller sections for easier solving.
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.