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2
5
1
9
6
8
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7
2
4
8
2
7
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9
5
2
8
3
1
9
8
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1
4
8
5
9
2
3
5
8
3
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6
2
4
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9
8
2025-11-05(Beginner) Puzzles
Feel accomplishment as you solve
If unsure, lightly mark possible numbers and return later.
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.