00:00
8
2
7
4
6
1
4
9
8
3
8
7
9
1
2
7
9
8
5
9
5
2
8
7
6
9
4
5
8
7
4
6
6
3
8
4
7
1
3
2
8
2025-05-09(Beginner) Puzzles
Learn number placement while solving
If unsure, lightly mark possible numbers 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.