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Setti's Rule
I am pleased to be able to host a new explanation for the Setti strategy written by Petra from Germany. It is far better written than anything I've come up with so I am replacing my text with this excellent document. Setti is named for the user who first suggested the idea on this website the Weekly Extreme no 25, on 15th of December 2010.

The rule makes use of the observation that, regardless of compartments, every digit appears in exactly the same number of rows and columns. This is due to the Str8ts rule that says numbers must be unique to each row and column. For example, if 8 appears in four columns, then it must appear in exactly four rows as well.



Download and read off-line Petra's Strategies for Setti in vanilla Str8ts puzzles
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Comments here pertain to corrections to the text, not the subject itself



Article created on 14-November-2013. Views: 4717
This page was last modified on 5-December-2013.
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