00:00
4
1
9
1
4
3
8
7
9
2
5
4
8
9
5
8
6
7
1
9
4
3
5
8
6
2
3
8
5
7
2
2024-12-05(Intermediate) Puzzles
Strategically plan number placement
Proceed logically without rushing.
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.