PDF chapter test TRY NOW
Rules to solve 4 \times 4 Sudoku:
- There are 4 rows and 4 columns.
- Each row should be placed with the digits 1, 2, 3 and 4 exactly once.
- Each column contains each digit of 1–4 exactly once.
- Each region(sub-grid) surrounded by thick lines and it can have digits 1, 2, 3, 4 once.
Example:
Let us learn how to solve sudoku with the help of following cases.
1. Understand to fill the two empty cells.
4\times4 Sudoku:
2. Fill in correct picture with its answer.
3. 4 \times 4 number sudoku.
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