00:00
7
4
1
6
9
5
7
5
1
4
1
9
8
3
6
4
8
9
5
7
9
3
6
2
4
6
7
5
1
4
6
2024-06-22(Intermediate) Puzzles
Judge placement strategically
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.