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3
4
1
8
5
2
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7
9
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9
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7
8
9
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8
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5
3
7
8
8
2
5
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7
1
6
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8
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4
2025-02-20(Beginner) Puzzles
Check basic rules while solving
Take it one step at a time to see the overall picture.
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.