00:00
8
5
6
1
7
4
3
1
5
2
8
4
8
2
9
7
2
8
5
4
3
1
7
8
5
6
5
8
4
1
9
2024-01-30(Intermediate) Puzzles
Strategically plan number placement
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.