View source for BUG Lite

'''BUG Lite''' is a [[solving technique]] that fills the gap between [[Uniqueness Test]] and [[Bivalue Universal Grave|BUG]]. It deals with isolated [[deadly pattern]]s which are not [[Unique Rectangle]]s. The logic is similar to Uniqueness Test.

The fundamental assumption on which this technique is based--that the [[Sudoku]] has only one solution--is a subject of debate.  See [[Uniqueness Controversy]].

Unlike the full '''BUG''', BUG Lite can be used as an isolated pattern.

Here is an example BUG Lite:

[[image:bug-lite.png]]

The candidates marked in red form a deadly pattern, so one of the two green candidates must be true. Furthermore, since digit '''6''' is locked in the intersection of column 1 and box 7, we can eliminate digit '''9''' from those cells.

== External Links ==
* [http://forum.enjoysudoku.com/viewtopic.php?t=3056 BUG Lite thread] on the Sudoku Players' forum

== See Also ==
* [[Bivalue Universal Grave|BUG]]
* [[Uniqueness Test]]
* [[Unique Rectangle]]
* [[Deadly pattern]]
* [[Uniqueness Controversy]]

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[[Category:Uniqueness]]
[[Category:Solving Techniques]]