00:00
9
7
5
3
1
4
7
8
5
8
1
9
2
5
9
1
3
6
2
7
4
5
3
2
4
5
9
6
5
4
6
9
7
8
1
9
8
7
5
4
3
2024-05-28(Beginner) Puzzles
Step-by-step puzzles for smooth solving
Check each candidate and leave uncertain squares for 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.