00:00
8
5
4
5
2
9
3
9
7
5
7
6
2
8
7
1
2
4
3
4
9
8
4
9
5
6
2
4
8
3
9
2024-10-18(Intermediate) Puzzles
Use reasoning in number puzzles
If stuck, review previous steps to find corrections.
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.