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4
8
6
8
9
6
5
7
6
2
3
5
2
1
3
8
6
5
1
4
3
2
7
5
1
7
8
5
7
3
9
2024-04-01(Intermediate) Puzzles
Strategically plan number placement
Be mindful of order and logic while solving.
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.