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2
3
8
9
9
7
5
1
3
8
9
7
2
5
9
2
3
6
1
2
3
1
8
6
7
9
1
6
7
5
8
7
5
2
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3
6
5
3
9
8
2024-01-11(Beginner) Puzzles
Enjoyable puzzles to practice placement
Double-check each number after placing it.
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.