-
Recent Posts
Recent Comments
Archives
- 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: Only Extreme Sudoku
Only Extreme 390 is Advanced
This post finishes the updates on Manuel Castillo’s Only Extreme Sudoku with a less advanced OnEx 390. This one is a better example of the Sysudoku XY Railway than was the original post. No trials were required in the ten … Continue reading
Sudokuwiki Solves Only Extreme 347 by AIC
In the original Only Extreme review, OnEx 347 was an example of a coloring trial on a limited cluster generated by pattern analysis. In this update, Andrew Stuart’s solver demonstrates a solving path to a final coloring without trials, via … Continue reading
Only Extreme 304 Scavenger Hunt
This post finishes the updated review of Only Extreme 304, displaying the Sudoku moves listed last week for the scavenger hunt. The ALS X-chain boomerang starts with the 9-chain emerging from r9c7 and terminating on the 9 candidate of ALS … Continue reading
Only Extreme 304 is AIC Level
This post and the next update Castillo’s Only Extreme Sudoku review with a solution of OnEx 304 without trials. Most of the solution path is in AIC building, the most challenging level of Sysudoku Advanced. The only move prior to … Continue reading
Classic Review Ends,OnEx 261 Escapes Trials
This post traces the bypass finish of Classic 240 and presents the review table for James Forest’s Classic Sudoku. Then it continues the update review of Manuel Castillo’s Only Extreme Sudoku with Only Extreme 261. Demonstrating a solution without trial, … Continue reading
Posted in Uncategorized
Tagged AIC boomerangs, AIC seeking level, ALS boomerang, bypass 3-fill, Classic Sudoku, coloring wrap, confirming A, confirming ANL, irregular ANL victim, James Forest, Manuel Castillo, Only Extreme Sudoku, pattern freeforms, pattern orphans, unique rectangle 2b
Leave a comment
Only Extreme 390 – a Fitting Finale
In this post, the last preselected Sudoku of the review, Only Extreme 390, is solved by only advanced methods, but by an extremely thin margin. The first crack in the armor is an irregular XYZ-wing. At first I missed an … Continue reading
A Coloring Trial for Only Extreme 347
Here a Manuel Castillo Sudoku sends me directly to last resort city. Although the bv field eludes productive XY-chains or AIC, coloring is decisive enough to solve 347 in a single trial. Your first view of the grid comes with … Continue reading
