00:00
9
8
4
6
7
5
7
8
1
2
4
4
2
7
5
1
7
3
9
2
3
4
6
1
9
8
7
6
9
2
4
1
3
9
8
9
8
3
1
2
7
2024-02-14(Beginner) Puzzles
Check basic rules 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.