00:00
9
6
8
3
7
6
8
2
4
5
3
6
1
9
7
4
1
5
8
8
9
6
4
3
1
1
5
8
9
2
6
9
2
3
7
2
8
9
4
8
3
2025-05-17(Beginner) Puzzles
Number Place suitable for first-time solvers
Narrow down candidates in each row and column.
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.