00:00
6
9
1
2
3
1
7
4
5
6
6
9
5
4
7
5
3
1
8
2
6
9
5
7
2
1
6
4
5
3
7
2024-03-26(Intermediate) Puzzles
Puzzles suitable for logical challenges
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.