00:00
2
1
1
4
6
7
8
3
7
9
1
5
4
2
1
5
4
7
3
7
2
1
4
8
3
2
1
1
5
8
3
7
2
3
7
1
7
5
1
4
8
2025-03-27(Beginner) Puzzles
Learn rules while solving
Look at the board as a whole to decide where to start.
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.