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

Posted in Advanced Solving, KrazyDad, Puzzle Reviews | Tagged , , | Leave a comment

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

Posted in Extreme Solving, KrazyDad, Puzzle Reviews | Tagged , , , | Leave a comment

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

Posted in KrazyDad, Puzzle Reviews | Leave a comment

A Sudokwiki Resolution of Insane 475


In this post Insane 475 is taken through basic and then submitted to Andrew Stuart’s Sudokuwiki solver for advanced solving.  In the original review, the puzzle was solved by an Single Alternative Sue de Coq trial, but in this update … Continue reading

Posted in Extreme Solving, KrazyDad, Puzzle Reviews | Tagged , , , , | Leave a comment