00:00
3
7
6
1
2
4
1
8
9
4
5
7
3
4
6
8
1
9
4
3
8
4
3
7
1
3
6
1
2
9
4
5
6
8
4
5
7
3
7
1
9
2025-10-12(Beginner) Puzzles
Start from the first step with simple puzzles
Use pencil marks to track possible candidates.
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.