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9
8
3
2
5
3
7
4
2
7
9
8
1
5
5
4
2
6
1
6
5
8
2
3
9
3
2
9
8
4
4
1
6
6
1
4
3
2
7
9
8
2025-10-22(Beginner) Puzzles
Build foundational skills with easy solving
Think about candidate placement before inserting numbers.
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.