00:00
2
1
7
3
4
9
3
8
9
4
8
2
1
1
7
4
8
2
1
9
3
2
1
5
8
9
2
5
8
1
4
2025-02-26(Intermediate) Puzzles
Analyze number patterns carefully
Compare candidates to narrow options efficiently.
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.