00:00
2
1
8
5
4
7
3
6
2
9
1
6
9
1
7
1
5
3
8
6
6
8
9
2
4
3
7
2
6
2
9
1
1
5
4
7
3
2
2
1
4
2024-07-19(Beginner) Puzzles
Challenging yet accessible 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.