00:00
1
4
7
2
4
2
9
3
1
2
7
5
3
7
7
1
4
1
6
5
3
1
7
1
2
8
2
5
9
4
7
2024-09-07(Intermediate) Puzzles
Consider multiple candidates while solving
Proper organization makes complex squares easier.
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.