00:00
7
6
3
2
4
1
9
8
5
2
5
7
9
1
8
3
4
3
4
9
1
2
8
7
2024-07-10(Advanced) Puzzles
Use full logic for complex solving
Check candidates calmly for complex squares.
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.