00:00
7
2
8
1
8
7
6
9
3
5
2
4
8
1
7
5
2
1
6
1
6
3
4
2
5
4
1
7
7
3
2
8
1
6
2
3
5
8
7
1
6
2024-06-09(Beginner) Puzzles
Solve puzzles while thinking of number positions
Double-check each number after placing it.
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.