00:00
5
6
8
4
1
3
3
4
7
9
8
8
1
8
3
4
1
9
5
8
6
3
6
9
9
3
2
5
4
8
6
2025-11-20(Intermediate) Puzzles
Read number patterns logically
Advance gradually toward completion.
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.