00:00
8
4
3
2
6
3
5
1
7
2
8
3
6
4
1
2
9
4
3
1
9
1
7
2
9
4
8
6
8
4
9
2024-01-01(Intermediate) Puzzles
Solve step by step with reasoning
Postpone complex squares and start with easier numbers.
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.