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5
9
3
1
3
9
6
7
8
1
2
7
5
3
2
3
4
8
4
2
5
3
7
5
7
1
6
3
1
8
9
6
5
9
1
8
9
1
5
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7
2024-04-16(Beginner) Puzzles
Check basic rules while solving
Use small notes for tricky squares and erase when confirmed.
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.