00:00
7
9
1
8
2
5
3
7
2
9
7
9
7
1
8
3
2
6
7
6
8
4
3
9
2
5
2024-12-10(Advanced) Puzzles
High-level puzzles for focused solving
Focus on logic without rushing.
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.