00:00
7
8
3
5
6
8
9
1
5
3
6
5
8
2
1
8
2
6
1
9
1
3
7
6
2024-07-23(Advanced) Puzzles
Puzzles for seasoned players
Follow steps to fill numbers efficiently without forcing.
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.