Tag Archives: Medusa coloring

Sadistic Sudoku Review

Posted on July 28, 2015 by

No, it isn’t a sadistic review. I’m reviewing Arnold Snyder’s Sadistic Sudoku collection of puzzles. Arnold’s solving advice, as presented in his “Sudoku Formula” books 2 and 3, will be analyzed in the following post. Two typical review puzzles are … Continue reading →

Posted in Advanced Solving, Puzzle Reviews | Tagged , , , , , , | Leave a comment

Weekly Extreme 426 Traces and Trials

Posted on March 31, 2015 by

We open the Weekly Extreme Competition review with #426. My selection for the review is simply the consecutive weeks, from here to #435. I’ll provide complete tracing to the point of guaranteed collapse. I want to particularly welcome WEC players. … Continue reading →

Posted in Advanced Solving, Puzzle Reviews, Weekly Extreme | Tagged , , , , , | Leave a comment

Cycling Blindfolded with the Guide

Posted on January 20, 2015 by

This post calls out Gordon Guide misguidance related to coloring, slink chains and the XY chain. AIC fundamentals are omitted in favor of ineffectual strategy and renaming of well known AIC formations. First, lets checkpoint the basic solving of the … Continue reading →

Posted in Advanced Solving, Expert Reviews, Gordon, Sudoku Toolware | Tagged , , , , , , , | Leave a comment

Plus and One-Sided Unique Polygons

Posted on December 23, 2014 by

In this post, the Gordon Guide’s Gordonian Polygons Plus and One-Sided Gordonian Polygons are shown to be variations of the unique polygon, defined here as a loop of cells, containing the same two numbers, which become a loop of conjugate … Continue reading →

Posted in Advanced Solving, Expert Reviews, Gordon | Tagged , , , | Leave a comment

Two Colorful Super Grand Masters

Posted on February 18, 2014 by

Here I continue the review of Sudoku, vol. 3 puzzles with the detailed solving of its SGM 20, and a coloring highlight from SGM 25. SGM 20 begins like no other puzzle I’ve ever seen of the advanced class, with … Continue reading →

Posted in Advanced Solving, Pitkow, Puzzle Reviews | Tagged , , | Leave a comment

Nice Loop Coloring of Insane 465

Posted on August 27, 2013 by

This post introduces nice loop coloring, with a very advanced nice loop. Pattern slicing has a cameo role. The solution comes in a color trial suggested by  nice loop extensions. On 465, the Stuart solver tries cell and line unit … Continue reading →

Posted in Advanced Solving, Extreme Solving, KrazyDad, Puzzle Reviews | Tagged , , , , , | 4 Comments

Shortz’ Ferocious Hall of Mirrors

Posted on July 2, 2013 by

This post recounts the solving of Beware 190, the review puzzle from Will Shortz’ collection book Ferocious Sudoku which has multiple solutions.  On another multiple solution puzzle, Frank Longo’s  Absolutely Nasty Level 4 puzzle 61(Review Snaps II 3/12/13), I used … Continue reading →

Posted in Advanced Solving, Puzzle Reviews, Shortz | Tagged , , , , , , | Leave a comment