00:00
4
9
3
2
5
8
6
4
6
7
2
6
9
4
1
7
3
2
8
4
8
4
9
7
6
5
1
2
4
9
3
2024-05-18(Intermediate) Puzzles
Standard difficulty puzzles
For squares with multiple candidates, consider order and priority.
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.