00:00
8
5
7
2
9
2
6
3
4
9
6
6
8
1
4
5
1
7
1
3
4
5
6
1
8
4
7
2024-07-28(Advanced) Puzzles
Test strategic thinking skills
Evaluate multiple candidates simultaneously.
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.