00:00
6
3
2
4
9
8
2
1
5
6
9
4
5
1
3
7
1
9
6
4
2
9
5
3
4
5
3
2
6
7
4
9
9
3
7
7
8
1
9
3
6
2024-07-09(Beginner) Puzzles
Step-by-step approach to solving
Double-check each number after placing it.
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.