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3
7
2
6
1
4
6
3
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5
9
9
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4
1
3
8
5
3
1
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6
5
8
9
2
4
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5
3
5
1
9
7
4
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1
9
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3
2025-11-13(Beginner) Puzzles
Puzzles that are easy to follow and complete
Narrow down candidates in each row and column.
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.