Reverse BUG Lite
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Revision as of 16:02, 25 October 2021 by 127.0.0.1 (talk) (Created page with "The '''Reverse BUG Lite''' is a generalization of the Reverse BUG solving technique. It can be stated as follows: : In solving a sudoku with a Uniqueness Controv...")
The Reverse BUG Lite is a generalization of the Reverse BUG solving technique. It can be stated as follows:
- In solving a sudoku with a unique solution, it is not possible to have two rows or columns partially filled so that all filled digits together form an unavoidable set.
The reason is because the unfilled cells in these two rows or columns also form an unavoidable set.
Example
If rows 1 and 2 look like this:
1 . . | 2 . . | 3 . . 3 . . | 1 . . | . . .
Then R2C7 <> 2.
