00:00
9
3
1
6
3
8
4
5
8
1
4
6
2
3
4
9
6
7
3
4
3
6
5
7
2
2
3
6
1
3
8
2024-01-22(Intermediate) Puzzles
Combine logic to solve efficiently
If stuck, review previous steps to find corrections.
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.