00:00
8
1
9
4
1
9
6
4
2
8
5
3
5
3
6
7
4
5
1
7
4
2
9
3
8
2
4
8
1
3
7
2024-07-03(Intermediate) Puzzles
Strategically plan number placement
Organize candidates and solve step by step.
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.