Tag Archives: sue-de-coq

The Volume 10 Rebecca Bean Extremely Hard Sudoku

Posted on March 6, 2018 by

This post begins the second review of a Rebecca Bean collection, this one prompted by a clever cover, and similarities in format to recently reviewed collections attributed to Moito Publishing, A.D. Ardson and James D. Glover. Here we resolve Extremely … Continue reading →

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Almost Extreme 175 Tags Five Advanced Bases

Posted on October 31, 2017 by

This post reaches the halfway point in the review of Manuel Castillo’s Only Extreme collection, with Only Extreme 175. A double UR, a regular Sue de Coq and irregular XYZ-wing prepare the bv field for coloring, and an XY chain … Continue reading →

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BV Scan Satisfaction in Saturday 2

Posted on March 28, 2017 by

This post continues the visit of Sudoku Satisfaction readers to Sysudoku with a tour of  advanced method principles applied in a Sysudoku solution of Satisfaction’s Saturday 2 puzzle. The roles of Rick Seemel’s Solution Rectangles I – IV in the … Continue reading →

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The Nastiest Ever Party II

Posted on January 26, 2016 by

This post displays some sysudokie snapshots from Nastiest 618, 640 and 651, The bv scan rules, with line marked fish, unique rectangles, Sue de Coq, XYZ-wings, and XY-chains.  A  Sysudoku technique formerly rated extreme gets to stop for a drink. … Continue reading →

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Hodoku Sue de Coq in 2015

Posted on September 15, 2015 by

This post reveals the Hodoku view of Sue de Coq, reflecting an earlier expert consensus, to be dated. His classic examples are good, but the examples of Hodoku’s “Extended Variation” of Sue de Coq are better interpreted as simply the … Continue reading →

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Taking on More Extreme 200

Posted on March 17, 2015 by

This post and the next checkpoint a sysudokie solution of Antoine Alary’s extra tough More Extreme 200. Sysudokie readers are given an opportunity to get a little extreme, as well. Happy St. Patrick’s Day. Let’s do the 200. But first, … Continue reading →

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The Snake Attacks Easter Monster

Posted on March 4, 2014 by

This time we review the implications of Sudoku Snake’s naked double loop attack on Easter Monster. It is posed as an independent method of attack, i.e. one that is not dependent of the EM distribution of given clues.  But is … Continue reading →

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A Sudokuwiki Resolution of Insane 475

Posted on September 3, 2013 by

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 →

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A Bv Scan of Week 48

Posted on April 23, 2013 by

Here we checkpoint the sysudoku bv scan on the blog homework puzzle, Week 48 in Paul Stephens’ Mastering Sudoku Week By Week.  The scan includes Sue de Coq and APE, two techniques ignored by Stephens’ books, and two techniques, XYZ-wings … Continue reading →

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Forcing Chains in Sue de Coq Analysis

Posted on December 18, 2012 by

In this post, the classical forcing chain and a sysudokie endorsed application are demonstrated on a multiple solution puzzle. An underlying assumption made in solving a Sudoku puzzle is that it has one and only one solution.  Some composers offer … Continue reading →

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