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8
6
1
5
2
7
9
3
5
1
4
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7
1
8
9
3
1
6
5
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8
7
2
6
1
4
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8
9
4
5
8
4
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8
7
1
3
7
3
2024-07-21(Beginner) Puzzles
Complete puzzles with ease
Narrow down candidates in each row and column.
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.