00:00
6
6
5
3
7
2
1
9
4
7
1
3
9
6
8
9
4
1
5
2
7
3
4
6
7
2
1
3
1
8
4
2024-12-12(Intermediate) Puzzles
Slightly challenging but fun puzzles
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.