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8
3
4
6
5
2
6
7
1
9
3
1
8
7
1
8
6
4
2
9
1
9
8
7
3
7
2
1
9
8
5
2
9
1
8
3
6
8
4
7
5
2025-01-19(Beginner) Puzzles
Follow order with simple puzzles
Check the rules each time you place a number.
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.