00:00
1
3
5
7
2
7
1
3
9
5
8
2
3
1
2
3
7
7
3
6
2
9
5
2
6
1
2
9
8
3
1
6
2
9
8
1
3
3
4
5
8
2024-09-25(Beginner) Puzzles
Solve by following number order
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.