00:00
7
2
3
9
5
8
8
5
7
8
6
3
3
5
7
4
4
6
2
8
3
6
2
4
5
1
2
9
2025-03-08(Advanced) Puzzles
Train your brain with challenging patterns
View the whole board to proceed logically.
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.