00:00
3
5
7
5
2
3
9
1
8
1
9
6
7
8
7
5
4
9
4
8
5
6
4
5
8
3
2024-08-24(Advanced) Puzzles
High-difficulty fun for practice
Consider number combinations to proceed optimally.
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.