00:00
5
6
8
2
7
6
8
6
8
2
4
2
8
3
7
3
1
9
9
1
4
7
2
8
9
9
5
4
7
5
3
2025-02-28(Intermediate) Puzzles
Combine logic to solve efficiently
Organize candidates and solve step by step.
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.