00:00
8
9
7
8
1
7
5
1
4
4
3
8
1
5
9
4
7
1
1
3
5
8
9
6
1
4
8
5
2
1
4
2024-07-09(Intermediate) Puzzles
Develop reasoning skills with puzzles
Proper organization makes complex squares easier.
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.