00:00
4
6
9
7
4
1
2
8
7
6
8
5
2
9
9
7
1
5
1
2
3
9
7
3
7
8
5
8
5
9
2
2024-11-27(Intermediate) Puzzles
Combine logic to solve efficiently
Be mindful of order and logic while solving.
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.