00:00
3
1
8
4
2
9
1
6
1
2
8
5
2
8
9
7
4
6
8
3
5
2
9
3
8
4
2024-05-14(Advanced) Puzzles
Decode challenging placements
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.