00:00
6
1
9
7
3
3
9
4
8
4
1
6
6
4
7
3
2
9
8
3
8
2
4
7
9
3
1
6
3
8
9
2024-07-05(Intermediate) Puzzles
Solve step by step with reasoning
Correct mistakes immediately if found.
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.