Monthly Archives: July 2013

Insane 425 Finishes With The Pink Olive


This post finishes the solution of Insane 425 in the KrazyDad Insane review by introducing a new technique in pattern analysis,  pattern slicing. Or more whimsically, the pink olive.  In this case, pattern slicing wraps a coloring cluster merge, finishing … Continue reading

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Insane 425 Introduces the Boomerang


This post checkpoints a 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 AIC Almost … 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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