00:00
3
2
2
7
8
6
3
5
4
3
1
7
9
5
1
2
8
9
3
2
4
9
6
8
2024-09-18(Advanced) Puzzles
Satisfying puzzles for experienced solvers
Compare possibilities and choose efficiently.
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.