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5
6
3
1
6
3
2
7
8
4
3
6
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6
8
4
2
4
2
9
1
3
6
8
6
3
9
3
9
7
8
7
5
2
1
6
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9
8
5
2
2025-11-01(Beginner) Puzzles
Fill numbers quickly and confidently
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.