00:00
9
2
6
5
5
3
2
4
2
9
3
7
1
9
7
1
4
1
8
6
5
8
2
4
3
2024-10-02(Advanced) Puzzles
Test reasoning and strategy skills
Think logically without rushing.
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.