00:00
9
6
3
7
4
8
3
1
5
4
3
2
5
4
7
7
6
5
1
8
8
3
7
2024-09-20(Advanced) Puzzles
Combine strategy and logical reasoning
Look at the board to check placements carefully.
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.