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9
5
8
4
6
1
3
2
1
7
8
4
4
1
2
7
5
9
1
2
8
7
5
8
9
5
3
2
3
1
7
5
8
4
5
2
9
6
6
3
7
2024-12-15(Beginner) Puzzles
Quick and straightforward puzzles
Check rows, columns, and 3x3 blocks to avoid duplicates.
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.