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2
6
1
7
8
8
7
2
1
5
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9
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1
4
2
7
6
9
5
3
1
2
8
7
8
6
9
8
9
1
6
5
8
9
2
2
9
6
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3
2025-10-28(Beginner) Puzzles
Experience the joy of placing numbers
If stuck, move to other parts 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.