Monthly Archives: March 2017

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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Touring the Bypass and a Human Engineered Inscription

Posted on March 21, 2017 by

This post continues the visit of Sudoku Satisfaction readers to Sysudoku with a demonstration of the slink marking bypass, line marking inscription, and basic subset spotting. How was lunch?  . . .  Good. OK, we’re ready to continue. Here is … Continue reading →

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The Sudoku Satisfaction Tour

Posted on March 14, 2017 by

In the next three posts, I introduce Sudoku Satisfaction  by Richard Nicholas Seemel, by inviting sysudokies to attend a tour for Satisfaction readers. The tour will highlight differences between  two systems that agree on basic solving approach, but not on … Continue reading →

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A Closing ALS Postscript on THLS

Posted on March 7, 2017 by

This post demonstrates ALS-XZ as an alternative to hidden XY chains, and concludes the review of The Hidden Logic of Sudoku by Denis Berthier. In THLS, Denis goes outside the Royles 17 collection only a few times for illustrative examples. … Continue reading →

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