Monthly Archives: July 2013

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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Insane 425 Introduces the Boomerang


This post checkpoints a stunning XYZ finish on Insane 415 and demonstrates a cluster merge by LPO with Insane 425, as part of a review of KrazyDad’s Insane collection on http://www.krazydad.com .  A spotting technique is explained and named for a type of … Continue reading

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The KrazyDad Insane Review Begins


This post begins the Sysudoku review of Jim Bumgardner’s toughest collection, the Insane level,  with a demonstration of cluster extension in Medusa coloring, via Limited Pattern Overlay.  The post was updated in 10/18. The first review puzzle is Insane v.4, … Continue reading

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Shortz’ Trickiest Bewares?


This post reports a second  review of a Will Shortz “Beware! Very Challenging” collection, this one from his Trickiest Sudoku.   When the first review of this series, presented as Shortz’ hardest,  revealed the Bewares to be at the sysudokie basic … Continue reading

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Shortz’ Ferocious Hall of Mirrors


This post recounts the solving of Beware 190, the review puzzle from Will Shortz’ collection book Ferocious Sudoku which has multiple solutions.  On another multiple solution puzzle, Frank Longo’s  Absolutely Nasty Level 4 puzzle 61(Review Snaps II 3/12/13), I used … Continue reading

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