00:00
7
8
2
3
5
7
3
9
5
2
4
6
3
9
6
7
1
2
4
9
5
8
2
2025-08-02(Advanced) Puzzles
Decipher complex placements
Apply strategy and logic to advance.
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.