00:00
7
3
8
9
2
1
6
7
4
5
6
7
9
9
1
3
7
2
1
8
4
9
7
3
2
6
2024-08-10(Advanced) Puzzles
Use full logic for complex solving
View the whole board to proceed logically.
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.