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Tag Archives: Medusa coloring
Sadistic Sudoku Review
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 Arnold Snyder, Medusa coloring, naked triple, review table, Sadistic Sudoku, XY ANL, XY railroad
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Weekly Extreme 426 Traces and Trials
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
Cycling Blindfolded with the Guide
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
Plus and One-Sided Unique Polygons
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
Two Colorful Super Grand Masters
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 ANL, Medusa coloring, SdC verification
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Nice Loop Coloring of Insane 465
This post introduces nice loop coloring, with a very special nice loop. Pattern slicing has a cameo role. The solution comes in a color trial suggested by nice loop extensions. Stingiest on the bypass, 465 gives no more clues in … Continue reading
Shortz’ Ferocious Hall of Mirrors
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
