00:00
6
5
2
2
6
1
4
7
5
3
9
4
2
3
5
1
3
1
7
2
5
3
2
9
1
1
5
7
6
8
9
2024-06-24(Intermediate) Puzzles
Moderately challenging puzzles
Solve less confusing parts first and follow order.
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.