00:00
6
1
3
7
4
8
9
6
5
3
1
8
4
2
5
7
4
2
1
7
6
2
5
2
5
3
4
6
5
1
7
2024-10-20(Intermediate) Puzzles
Standard difficulty puzzles
Start with slightly harder squares to grasp the flow.
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.