00:00
9
3
7
5
8
1
9
7
8
9
6
8
7
9
6
3
2
4
6
2
5
4
2
9
3
2
9
2
5
1
6
2024-03-03(Intermediate) Puzzles
Solve step by step with reasoning
Compare candidates to narrow options efficiently.
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.