00:00
7
1
4
6
4
2
5
1
2
7
9
1
3
4
5
8
6
1
3
8
2
5
9
2024-03-23(Advanced) Puzzles
Use full reasoning ability
Complex patterns can be solved step by step using logic.
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.