00:00
2
5
3
9
4
9
2
5
6
3
2
2
8
4
8
6
5
2
7
9
2
3
6
1
7
3
6
4
1
3
7
2024-06-07(Intermediate) Puzzles
Apply logical thinking for number placement
Compare candidates to find the best order.
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.