00:00
2
7
1
1
5
2
4
1
6
6
1
2
5
3
4
2
8
7
1
9
8
2
6
1
2
3
8
6
2
7
3
2024-04-17(Intermediate) Puzzles
Standard difficulty puzzles
Focus on logic to efficiently complete puzzles.
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.