00:00
9
7
4
6
2
3
9
4
1
3
2
5
8
3
2
7
6
2
5
7
9
5
6
1
3
5
4
6
3
2
9
2025-07-19(Intermediate) Puzzles
Read number patterns logically
Solve less confusing parts first and follow order.
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.