00:00
7
4
1
9
8
2
6
3
9
7
5
3
4
5
2
7
2
8
4
6
8
3
5
2
9
1
6
3
7
2
9
2
8
6
1
4
5
8
4
1
6
2024-11-26(Beginner) Puzzles
Solve by following number order
Think about candidate placement before inserting numbers.
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.