00:00
2
8
6
9
7
3
6
7
5
2
6
5
8
6
9
3
1
9
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8
4
2
3
2
8
6
9
1
3
7
7
3
1
4
5
9
6
7
3
5
2
2024-12-20(Beginner) Puzzles
Check basic rules while solving
Check the rules each time you place a number.
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.