00:00
4
5
6
2
1
9
9
7
2
1
8
1
6
2
3
7
8
6
1
1
5
4
7
1
4
6
9
5
6
5
3
2024-12-24(Intermediate) Puzzles
Enjoy solving with thoughtful placement
Review candidates if stuck and reorganize.
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.