00:00
4
6
9
4
2
5
1
5
8
9
3
7
5
1
6
6
2
9
8
2
9
5
1
9
9
7
2
3
3
5
6
2024-02-14(Intermediate) Puzzles
Consider number order and candidates
Decide where to place numbers by viewing the board as a whole.
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.