00:00
3
2
1
2
6
9
5
9
4
2
6
4
6
7
2
9
1
3
8
6
5
2
5
9
8
1
7
6
8
6
3
8
9
6
2
4
2
5
8
3
7
2025-11-19(Beginner) Puzzles
Number Place suitable for first-time solvers
Check each candidate and leave uncertain squares for later.
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.