00:00
1
6
3
8
9
5
2
5
8
3
2
1
4
1
7
2
4
1
8
5
8
5
7
3
1
1
9
7
4
6
9
2024-05-08(Intermediate) Puzzles
Develop reasoning skills with puzzles
Compare candidates to find the best order.
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.