00:00
5
2
7
2
3
7
8
2
4
6
9
2
3
7
5
2
6
8
2
6
1
9
8
2
6
4
8
7
8
9
1
2024-10-30(Intermediate) Puzzles
Enjoy reasoning while solving
Look at the whole board to decide where to proceed.
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.