00:00
4
9
7
8
3
4
9
1
7
2
7
3
4
1
6
5
3
5
9
1
4
2
5
6
9
4
9
6
7
1
5
3
8
3
2
7
1
5
7
1
9
2025-09-01(Beginner) Puzzles
Solve by following number order
Look for rows, columns, or blocks that are nearly complete.
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.