00:00
8
7
5
5
4
7
2
6
5
3
1
8
4
9
1
6
5
7
9
3
8
2
4
8
5
9
6
1
4
1
7
2024-08-27(Intermediate) Puzzles
Think carefully for the best moves
Advance gradually toward completion.
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.