00:00
6
5
3
8
7
2
6
5
9
9
1
2
5
4
5
2
6
1
8
3
2
5
1
4
9
3
2
7
2
8
9
5
7
6
4
6
5
5
7
4
2
2025-10-21(Beginner) Puzzles
Quick and straightforward puzzles
Fill the simplest squares first for efficiency.
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.