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8
6
9
3
5
4
1
2
1
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7
5
8
6
2
1
9
9
7
4
1
8
8
9
3
5
2
6
3
2
5
4
5
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8
1
9
6
9
5
2
2024-03-30(Beginner) Puzzles
Step-by-step guidance while solving
Fill the simplest squares first for efficiency.
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.