00:00
8
6
3
4
7
3
2
1
9
5
5
7
4
5
8
3
6
3
4
9
1
5
6
5
8
7
1
9
7
8
3
2024-02-06(Intermediate) Puzzles
Slightly challenging but fun puzzles
Correct mistakes immediately if found.
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.