00:00
6
1
4
8
2
7
9
3
6
2
3
9
2
1
6
5
5
7
8
3
5
6
1
6
9
4
1
3
2
8
2
2024-11-29(Intermediate) Puzzles
Puzzles suitable for logical challenges
Look at the whole board to decide where to proceed.
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.