-
Recent Posts
Recent Comments
Sudent on Slink vs. Coloring Networks an… GUENTER TODT on Slink vs. Coloring Networks an… Sudent on Slink vs. Coloring Networks an… GUENTER TODT on Slink vs. Coloring Networks an… Sudent on Ardson Very Hard v.2 198 and… Archives
- 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: finned X-wing
Cluster Extension by Not-Both Trials
In this post and the next, the first puzzle of the Manuel Castillo Only Extreme Sudoku review, Only Extreme 3, is taken ahead of the review of his Only Hard Sudoku. The reason is in the title. Rounding out the … Continue reading
Longo’s Nastiest Ever After
This post finishes the illustrative review of Frank Longo’s The Nastiest Sudoku Book Ever, with review puzzles 673, 684, 695 and 706. The bv scan and occasional easy coloring continue to be enough for what Frank claimed to be the … Continue reading
The Olive Side of Fata Morgana
This post illustrates with Fata Morgana the practice of taking both sides of a trial, to be sure that a contradiction is found. The pink trial led to the solution. Fully expecting a contradiction, the olive trial begins with the … Continue reading
Posted in Extreme Solving, Monster
Tagged Fata Morgana, finned X-wing, pink olive trial, post solution trial, trial trace
Leave a comment
Finishing More Extreme 200
This post continues, slicing the 9 patterns of More Extreme 200, and conducting trials of the divided sets. A brief, but decisive cluster merge ends the struggle. Antoine was right. #200 is outstanding. Following a pink/olive analysis on the 9 … Continue reading
Gordon Guide Puzzle Review
This post reviews the collection of 700 Frank Longo puzzles following the text in the Gordon Guide to Solving Sudoku. A review table summarizes the Sysudoku rating of 10 preselected puzzles, and one advanced puzzle is analyzed in detail. The … Continue reading
Posted in Advanced Solving, Puzzle Reviews, Sudoku Toolware
Tagged finned X-wing, Frank Longo, Gordon Guide Sudoku, line marking X-wing, XYZ map, XYZ-wing
2 Comments
Grinding Down Insane 495 with LPO Coloring
In this concluding post on Insane 495, one of two clusters is expanded by several means, including color LPO and a nice loop, merging clusters and reaching a point where an easy trial color wraps it up. Insane 495 is … Continue reading
Stephens’ Extremes Snaps III
This post finishes the snapshots of significant solving events from Extreme review puzzles found in Paul Stephens’ books Mastering Sudoku Week by Week, and Sudoku Addict Workbook. In the last post, we left Addicts 138 with removals you could follow … Continue reading
