00:00
9
3
7
5
2
2
1
3
7
4
8
1
9
3
1
8
6
4
5
2
3
9
4
7
5
2
8
2
6
9
6
1
9
4
7
2
1
9
1
3
7
2025-08-29(Beginner) Puzzles
Learn rules while solving
If stuck, move to other parts and return 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.