00:00
7
2
8
4
9
6
5
6
8
4
7
2
9
6
8
3
7
2
6
5
8
7
9
2
5
7
8
4
2
5
1
2024-05-07(Intermediate) Puzzles
Apply logical thinking for number placement
Analyze row and column patterns for optimal steps.
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.