00:00
8
9
4
2
3
2
9
8
7
4
4
7
5
9
1
5
6
4
3
1
9
1
5
7
8
1
4
5
3
2
3
9
8
7
4
1
3
6
7
8
5
2025-01-11(Beginner) Puzzles
Step-by-step approach to solving
Use small notes for tricky squares and erase when confirmed.
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.