00:00
7
3
2
4
4
3
8
1
8
9
4
6
5
8
1
5
7
6
3
1
2
5
7
2025-04-24(Advanced) Puzzles
Challenge yourself with complex patterns
Evaluate multiple candidates simultaneously.
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.