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6
2
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8
4
7
2
5
6
9
9
1
7
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6
2
7
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6
5
8
3
7
6
2
4
2
4
5
9
3
1
8
7
8
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6
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5
2024-01-02(Beginner) Puzzles
Check rules while placing numbers
Look at the board as a whole to decide where to start.
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.