-
Recent Posts
Recent Comments
Archives
- December 2019
- November 2019
- October 2019
- September 2019
- August 2019
- July 2019
- June 2019
- May 2019
- April 2019
- March 2019
- February 2019
- January 2019
- December 2018
- November 2018
- October 2018
- September 2018
- August 2018
- July 2018
- June 2018
- May 2018
- April 2018
- March 2018
- February 2018
- January 2018
- December 2017
- November 2017
- October 2017
- September 2017
- August 2017
- July 2017
- June 2017
- May 2017
- April 2017
- March 2017
- February 2017
- January 2017
- December 2016
- November 2016
- October 2016
- September 2016
- August 2016
- June 2016
- May 2016
- April 2016
- March 2016
- February 2016
- January 2016
- December 2015
- November 2015
- October 2015
- September 2015
- August 2015
- July 2015
- June 2015
- May 2015
- April 2015
- March 2015
- February 2015
- January 2015
- December 2014
- November 2014
- October 2014
- September 2014
- August 2014
- July 2014
- June 2014
- May 2014
- April 2014
- March 2014
- February 2014
- January 2014
- December 2013
- November 2013
- October 2013
- September 2013
- August 2013
- July 2013
- June 2013
- May 2013
- April 2013
- March 2013
- February 2013
- January 2013
- December 2012
- November 2012
- October 2012
- September 2012
- August 2012
- July 2012
- June 2012
- May 2012
- April 2012
- March 2012
- February 2012
- January 2012
- December 2011
- November 2011
- October 2011
- September 2011
Categories
Meta
Tag Archives: slink marking
KD Insane 415 Updated
This post tells the story in the solving of Krazy Dad Insane v4, b1, n5, as reported in updated Sysudoku posts of 7/13/13 and 7/20/13. It’s one way that coloring and pattern analysis work together. Important features of Sysudoku Basic … Continue reading
Posted in Advanced Solving, KrazyDad, Puzzle Reviews, Uncategorized
Tagged bypass, KD Insane, pattern coloring, slink marking, X-wing
Leave a comment
Three Basic Phases on Beware 135
An easy basic workout, with help from 3-fills, a hidden single, many naked pairs, and a hidden dublex in Beware 135, the fourth in the review of Will Shortz’ Hard Sudoku, v.1. And two suggestions for Sysudoku readers. The basic … Continue reading
Posted in Basic Solving Procedures, Puzzle Reviews, Shortz
Tagged 3-forms, chute fill, slink marking, Will Shortz Hard Sudoku
Leave a comment
The Sudoku Satisfaction Tour
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
Basic Sudoku With Arnold
This post compares Arnold Snyder’s basic solving methods, the techniques leading to a full set of candidates, with Sysudoku basic. Snyder’s basic methods are described in Sudoku Formula 1 and Formula 2. A second post will evaluate the Snyder advanced … Continue reading
Posted in Basic Solving Procedures, Expert Reviews, Snyder
Tagged Arnold Snyder, basic Sudoku, box/line, pencil marking, slink marking, subsets
Leave a comment
The 2013 Akron Sudoku Tournament
Here’s my report on the second successful Sudoku tournament put on by the Akron-Summit County Library. Yours truly didn’t complete a single puzzle in the contest, but I renewed acquaintance with some phenomenal solvers. I’m including a trace and checkpoint … Continue reading
Posted in Basic Solving Procedures
Tagged naked pairs, pencil marking, slink marking, Will Shortz
Leave a comment
Snapshots from Sheldon’s Master Class
Here are some images from the Master Class review puzzles that illustrate Systematic Sudoku solving in action. I deemed the collection strong in basic solving, with very limited excursions into advanced techniques. First is the #40 grid at the close … Continue reading
Slink Marking
This post is about the slink marking, the Sysudoku method of pencil marking. It explains why this form is far more useful than the keypad system seen in of most Sudoku publications. This fact is demonstrated here with a historically … Continue reading
