Monthly Archives: September 2013

A Bridge Over Insane 485


Insane v.4 b.8 n.5, the eighth puzzle of a review of the KrazyDad Insane collection on http://www.krazydad.com,  had little left after Sysudoku basic solving.  XY chain ANL and a coloring bridge, supported by a cloud of bi-value cells, finishes it … Continue reading

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Pattern Trials of Insane 475


After a week’s technical delay,  let’s conduct our third trial on KrazyDad’s Insane v.4 b.7 n.5. The first two trials validated Sue de Coq chutes, removing candidates.  This is often necessary with tough puzzles, to verify that alternative values are … Continue reading

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Pause for Pictures


Today’s post was postponed by a technical difficulty.  There was a browser update problem that prevented me from uploading pictures, an essential component of my posts.  The problem has been corrected, and I have updated the Sudoku Traces page to … Continue reading

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Sue de Coq Trials of Insane 475


In this post , a reader’s checkpoint affirms that Insane 465 is free of multiple solutions.  Then Insane 475 is taken through basic and advanced solving stages.  A new form of two dimensional trace is introduced that is particularly suitable … Continue reading

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