00:00
5
3
2
1
8
2
8
4
9
7
9
7
3
3
5
8
2
9
5
2
4
6
1
7
2
8
3
5
2
6
7
2024-06-15(Intermediate) Puzzles
Logical puzzles for steady progress
Take your time if stuck and review candidates.
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.