00:00
3
5
8
9
5
4
2
3
1
8
4
3
1
7
5
6
5
6
2
3
6
8
4
2
3
7
9
5
7
5
6
2
1
6
3
1
3
5
6
8
4
2025-08-18(Beginner) Puzzles
Number Place suitable for first-time solvers
For first-timers, use notes to organize your thinking.
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.