00:00
9
8
7
2
3
4
8
7
8
1
4
6
8
2
4
3
8
5
1
6
6
4
1
3
9
8
8
5
6
7
3
2024-06-02(Intermediate) Puzzles
Strategically plan number placement
Look at the whole board to decide where to proceed.
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.