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3
4
1
2
6
7
5
1
2
2
9
8
3
7
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9
8
7
6
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5
1
8
4
3
7
8
2
4
1
9
3
6
7
3
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5
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9
2024-06-24(Beginner) Puzzles
Solve by following number order
For first-timers, use notes to organize your thinking.
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.