Tag Archives: KrazyDad Insane

KD Insane 485 One Clue Better


  The Sudokuwiki solution of Insane 485 is reported, starting with the ALS boomerang, but with an extra clue provided by a rare pattern trial. It so happens that one of the two candidates of the ALS 9-group belongs to … Continue reading

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Insane 455 Colors With Pink Olive Crayons


This post explores a relationship between pattern slicing and Medusa coloring, and develops a trial based on this relationship. After extreme resistance to advanced methods, KD Insane v4 b5 n5 falls prey to a coloring cluster generated by a strong … Continue reading

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An Insane 445 Pattern Slicing Demo


In this revised post, difficult line marking leaves a semi-monster. It is whittled down to a decisive double ANL, which can be duplicated instructively by pattern slicing.  The review puzzle, Insane volume 4, book 4, number 5, with thousands more, … Continue reading

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Insane 435 By Irregular XYZ and ANL


The third puzzle in a review of the KrazyDad’s Insane collection, Insane v.4, b.3, n.5,  succumbs to bv scan removals.  Some a bit unusual, but no new  ground broken.  The collection resides at http://www.krazydad.com . The updated basic trace includes … Continue reading

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Insane 425 Finishes With The Pink Olive


This post finishes the solution of KD Insane 425 review with pattern slicing, a technique also referred to as the pink olive. Before that, we attempt to answer the homework question by using patterns to merge the clusters. That doesn’t … Continue reading

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