00:00
2
5
3
8
9
5
1
4
4
1
6
7
1
4
9
1
6
4
8
2
4
6
3
8
5
4
6
1
2
7
3
2024-03-06(Intermediate) Puzzles
Apply logical thinking for number placement
Confirm each number gradually to understand the structure.
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.