Tag Archives: sudoku POM

Scrounging for New Pattern Sets in LPO


Here we attempt a more satisfying victory over the Stuart Unsolvable #40, by using the pattern reductions of the first pattern sets to add new pattern sets, moving closer to the full Pattern Overlay Method.  This series of posts on … Continue reading

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Searching for Orphans in LPO


This post illustrates the search for orphans in my Limited Pattern Overlay method.  Orphans are what we going to call candidates not belonging to any completed pattern.  Orphans are found by means of the freeform diagrams, as illustrated in Pattern … Continue reading

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Coloring LPO


We follow up the LPO attack on Maestro 22 in this post to illustrate how coloring enhances LPO pattern enumeration. The clues from pattern 7a  yield N8=>NEhs8=>NEr3np46=> NWr3np89=>Nr3np69, and E9m=>SE9m.  The 5 patterns yield a 5-clue in E. The 2-panel … Continue reading

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