00:00
6
1
3
4
5
9
4
6
1
3
8
5
2
7
5
2
8
3
1
4
3
7
2
7
2
3
4
5
6
7
4
3
9
9
6
8
7
1
7
4
5
2025-03-16(Beginner) Puzzles
Number Place suitable for first-time solvers
Use pencil marks to track possible candidates.
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.