00:00
5
9
8
2
2
1
8
4
6
5
1
2
6
1
6
2
7
8
5
3
7
4
1
6
3
5
2
4
2
4
8
2025-11-26(Intermediate) Puzzles
Consider number order and candidates
Confirm each number gradually to understand the structure.
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.