00:00
4
2
7
9
6
8
3
2
8
7
5
7
4
9
2
7
6
8
9
1
7
1
9
3
2025-10-25(Advanced) Puzzles
Think through number combinations
Read complex placements and decide strategically.
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.