00:00
7
5
9
8
3
2
9
3
8
2
9
1
4
3
7
1
4
2
3
9
2
3
4
6
2024-12-27(Advanced) Puzzles
Use full reasoning ability
Understand overall structure to solve difficult squares.
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.