00:00
2
1
3
5
4
8
9
3
3
5
4
6
4
6
5
9
1
8
7
2
1
9
4
2
4
6
3
1
2
1
9
7
8
6
3
8
3
2
1
5
7
2025-04-11(Beginner) Puzzles
Check rules while placing numbers
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.