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7
3
6
2
6
2
9
4
3
5
1
1
5
6
2
2
7
3
5
5
8
7
2
9
4
8
3
6
6
5
9
2
8
3
6
5
1
2
8
7
6
2024-10-04(Beginner) Puzzles
Learn number placement while solving
Pay attention to obvious numbers that can be placed immediately.
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.