00:00
9
3
8
6
2
7
6
8
5
1
7
3
5
7
2
6
9
4
1
9
3
3
7
8
2
1
5
9
2
5
6
2025-07-05(Intermediate) Puzzles
Enjoy reasoning while solving
Arrange numbers effectively to progress.
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.