00:00
7
5
4
2
2
9
8
9
4
4
1
2
7
5
6
3
1
5
9
1
7
8
1
4
2025-01-16(Advanced) Puzzles
Maximize brainpower while solving
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.