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5
6
4
2
4
2
8
1
7
9
2
8
1
9
6
2
3
8
4
3
9
2
6
7
2
8
3
1
2
8
7
9
7
3
8
8
1
9
5
4
2
2024-10-25(Beginner) Puzzles
Fill numbers quickly and confidently
Check each candidate and leave uncertain squares for later.
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.