Tag Archives: almost nice loops

Simplifying Hodoku AIC


This post examines the AIC examples from the Discontinuous Nice Loop section of Hodoku Chain and Loop techniques page. Hodoku claims to demonstrate a new type of elimination technique based on AIC loops, called AIC Discontinuous Type 2. AIC ANL … Continue reading

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Advancing through GM 5


This post checkpoints the bv scan and a verification of a decisive Sue de Coq in GM 5 of the Sudoku, vol.3 Grand Master collection. It also introduces GM 95, an extremely unbalanced puzzle that is due for an intense … Continue reading

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Insane 435 By Irregular XYZ and ANL


The third puzzle in a review of the KrazyDad’s Insane collection, Insane v.4, b.3, n.5,  succumbs to bv scan removals.  Some a bit unusual, but no new  ground broken.  The collection resides at http://www.krazydad.com . The updated basic trace includes … Continue reading

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Paul Stephens’ Extremes Review


Here we review as one collection the “extreme” puzzles in Paul Stephens’  two current books, Mastering Sudoku Week by Week and The Sudoku Addict’s Workbook. In Stephens’ Weeks, puzzles for weeks 26 through 52 are labeled “Extreme”.  By this, Paul … Continue reading

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The ANL Test


A review of Paul Stephens’ books continues here with my discovery that his Nishio procedure,  when properly applied,  can be a practical X-panel analysis technique to uncover obscure grouped almost nice loops (ANL).  I propose calling it “the ANL test”. … Continue reading

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Extreme Stephens


This post completes my analysis of Paul Stephens advanced solving instruction in his current books, covering his “extreme” sections. Paul’s descriptions and examples are evaluated from the sysudoku perspective. Let’s start with another look at Paul’s preview for his Week … Continue reading

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