Tag Archives: Peter Gordon

Arnold Abandons Reason


This post calls out Arnold Snyder’s embrace of arbitrary guessing as a way around the inadequate advanced Snyder methods in Sudoku Formula 3. I also deplore his misguided endorsement of Peter Gordon’s Sudoku Guide. If the puzzle survives the “Snyder … Continue reading

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

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

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

Wings and Chains With the Gordon Guide


This post reviews the Chapter 9 of Peter Gordon’s Sudoku Guide, entitled Forcing Chains and Grid Coloring. The guidance is very limited, and what there is, promotes guessing as opposed to solving by logic. This verdict is confirmed in the … Continue reading

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

Extended Gordonian Overreach


In this blog, the Gordon Guide’s deceptive attempts to promote Gordonian logic are further exposed. The renaming of extended unique rectangles, and the introduction of a purported new method, the Gordonian Rectangle Wing, are debunked. While attributing extended unique rectangles … Continue reading

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

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

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

A Gordonian Fantasy


Here we spring a booby trap laid by the “definition by example” policy of the Peter Gordon Guide. It is the Gordonian Polygon, as demonstrated by his Guide to Solving Sudoku. The correct interpretation and application of the strategy are … Continue reading

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

Gordonian UR-ology


This post continues a review of advanced instruction in Peter Gordon’s Guide to Solving Sudoku, by explaining why unique rectangle methods need not be renamed “Gordonian rectangles”, and why you can’t count on Gordon’s Guide to make you an expert … Continue reading

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

The Peter Gordon Fishing Guide


We leave November and basic solving with a review of Peter Gordon’s advanced solving recommendations in his Mensa® Guide to Solving Sudoku, now re-issued as the PuzzleWright Guide etc. After a brief summary of the Guide’s general failings, this post … Continue reading

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

The 2014 Akron Sudoku Tournament


Here is a report on my experience in the Akron-Summit County Library Sudoku Tournament of 2014 last Saturday. In particular, it’s a brief review on how well my recently introduced dublex bypass worked on the tournament puzzles. Each puzzle came … Continue reading

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

The Slink Marking Bypass


This post describes an adaptation of Sysudoku box marking which is suitable for timed solving contests. I call it the slink marking bypass. You apply the slink and triple marks to finding clues and cell claiming naked pairs only, bypassing … Continue reading

Posted in Basic Solving Procedures, Puzzle Reviews | Tagged , , , , | 2 Comments