00:00
9
8
4
5
1
3
5
6
2
7
1
8
7
8
2
9
5
4
7
8
6
2
1
2
5
9
3
8
2
1
9
2
3
4
9
6
3
4
9
7
2
2025-02-22(Beginner) Puzzles
Experience the joy of placing numbers
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.