00:00
6
4
3
3
7
8
5
3
1
7
4
9
2
1
7
5
6
9
2
8
8
5
3
3
1
6
2025-04-30(Advanced) Puzzles
Use full reasoning ability
Think logically 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.