Tag Archives: enumerated ALS

Sudoku Assistant’s ALS Toxic Sets


This post reviews Bob Hanson’s illustrations on ALS toxic sets, in Sudoku Assistant – Solving Techniques. For these illustrations, Hanson uses the bent naked n-set examples of the previous post. Strangely enough, this extreme economy brings insights. Bob Hanson designed … Continue reading

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The ALS Petaled Death Blossom


Today we illustrate the full blown Death Blossom with ALS petals. Earlier I noted Death Blossom Lite as a removal technique in the bv scan.  Completion of a DB Lite with a closing ALS is also relatively easy to find.  … Continue reading

Posted in Extreme Solving, Sudoku Toolware | Tagged , , | 5 Comments