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8
7
7
2
4
6
3
2
5
6
4
8
1
7
5
8
6
3
3
6
1
2
4
7
8
1
5
9
7
2
9
5
6
4
8
1
1
7
2
5
6
2025-03-23(Beginner) Puzzles
Check basic rules while solving
Review your progress several times to minimize mistakes.
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.