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4
8
5
9
5
6
2
8
2
3
5
6
4
1
6
7
1
4
5
6
1
2
4
1
3
9
7
1
8
9
3
6
1
7
4
8
4
8
3
5
6
2025-10-27(Beginner) Puzzles
Challenging yet accessible puzzles
Follow a logical order to feel a sense of accomplishment.
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.