00:00
7
5
3
9
1
2
1
3
5
5
1
2
7
6
2
8
4
3
9
1
8
7
4
3
9
9
6
1
8
4
6
9
8
3
5
2
8
3
5
6
1
2024-07-24(Beginner) Puzzles
Fill numbers quickly and confidently
For first-timers, use notes to organize your thinking.
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.