Sudoku 129 Better Direct

It is mathematically proven that a standard Sudoku puzzle needs at least to have a unique solution. Forced Entries:

In this variant, the value of a cell in the first, fifth, or ninth column tells you where a specific number is located within that same row. Sudoku 247 The digit in this column tells you which column the number is in for that row. If Column 1, Row 1 contains a , then the number must be placed in Column 4 of Row 1. The digit in this column tells you which column the number is in for that row. If Column 5, Row 3 contains a , then the number must be placed in Column 7 of Row 3. The digit in this column tells you which column the number is in for that row. If Column 9, Row 6 contains a , then the number must be placed in Column 2 of Row 6. Why It's "Better" This rule is popular among enthusiasts on platforms like Cracking the Cryptic sudoku 129 better