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Tag Archives: Paul Stephens
Stephens’ Extremes Snaps III
This post finishes the snapshots of significant solving events from Extreme review puzzles found in Paul Stephens’ books Mastering Sudoku Week by Week, and Sudoku Addict Workbook. In the last post, we left Addicts 138 with removals you could follow … Continue reading
Stephens’ Extremes Snaps II
Here we continue with snapshots from the review puzzles from Stephens’ The Sudoku Addict’s Workbook. The review covers 10 of 40 “Extreme” puzzles in this and Paul’s Mastering Sudoku Week by Week. The Extreme collection is highly recommended, even if … Continue reading
Posted in Advanced Solving, Puzzle Reviews
Tagged almost nice loop, ER XYZ-wing, finned X-wing, Medusa coloring, Paul Stephens
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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
Posted in Advanced Solving, Expert Reviews, Puzzle Reviews, Stephens
Tagged almost nice loops, ANL test, Nishio, Paul Stephens
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To Nishio or Not to Nishio
This post examines Paul Stephens’ favored form of Nishio, from his two current books on advanced Sudoku solving. The analysis of the Addicts 140 determines the relationship between Stephens’Nishio and a simple test for grouped almost nice eliminating loops on … Continue reading
Posted in Advanced Solving, Expert Reviews, Stephens
Tagged almost nice loop, ANL, ANL test, finned X-wing, Nishio, Paul Stephens
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Stephens in the Library with a Laptop
This post continues with differences between sysudoku advanced solving and the Paul Stephens “extreme” order of battle. In particular, the power of full Medusa coloring compared to Stephens’ limited multi-colouring. Let’s begin with a checkpoint for solve-along sysudokie readers. In … Continue reading
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
A Bv Scan of Week 48
Here we checkpoint the sysudoku bv scan on the blog homework puzzle, Week 48 in Paul Stephens’ Mastering Sudoku Week By Week. The scan includes Sue de Coq and APE, two techniques ignored by Stephens’ books, and two techniques, XYZ-wings … Continue reading
Posted in Advanced Solving, Puzzle Reviews, Sudoku Toolware
Tagged avoidable UR, bv map, forcing chains, Paul Stephens, sue-de-coq, X-wing, XYZ map
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