00:00
3
5
5
1
2
6
4
7
5
1
8
8
2
3
4
7
7
5
3
4
1
8
2024-10-25(Advanced) Puzzles
High-difficulty fun for practice
Use strategic thinking to solve complex patterns.
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.