00:00
7
5
4
1
3
9
6
7
8
8
7
3
1
7
4
3
6
2
4
3
9
5
1
9
2
3
5
7
5
4
9
2025-06-07(Intermediate) Puzzles
Tackle slightly complex patterns
Use notes to reduce hesitation.
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.