00:00
8
3
8
9
7
7
1
9
5
7
6
2
4
5
6
9
3
8
5
1
1
7
4
2024-06-11(Advanced) Puzzles
Test reasoning and deduction skills
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.