00:00
5
2
6
5
1
7
4
2
4
1
4
9
3
5
9
6
7
8
8
9
3
4
6
9
1
5
2024-02-09(Advanced) Puzzles
Puzzles requiring strategic planning
Apply strategy and logic to advance.
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.