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Tag Archives: slink marking
KD Insane 415 Updated
This post tells the story in the solving of Krazy Dad Insane v4, b1, n5, as reported in updated Sysudoku posts of 7/13/13 and 7/20/13. It’s one way that coloring and pattern analysis work together. Important features of Sysudoku Basic … Continue reading
Posted in Advanced Solving, KrazyDad, Puzzle Reviews, Uncategorized
Tagged bypass, KD Insane, pattern coloring, slink marking, X-wing
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Three Basic Phases on Beware 135
An easy basic workout, with help from 3-fills, a hidden single, many naked pairs, and a hidden dublex in Beware 135, the fourth in the review of Will Shortz’ Hard Sudoku, v.1. And two suggestions for Sysudoku readers. The basic … Continue reading
Posted in Basic Solving Procedures, Puzzle Reviews, Shortz
Tagged 3-forms, chute fill, slink marking, Will Shortz Hard Sudoku
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The Sudoku Satisfaction Tour
In the next three posts, I introduce Sudoku Satisfaction by Richard Nicholas Seemel, by inviting sysudokies to attend a tour for Satisfaction readers. The tour will highlight differences between two systems that agree on basic solving approach, but not on … Continue reading
Basic Sudoku With Arnold
This post compares Arnold Snyder’s basic solving methods, the techniques leading to a full set of candidates, with Sysudoku basic. Snyder’s basic methods are described in Sudoku Formula 1 and Formula 2. A second post will evaluate the Snyder advanced … Continue reading
Posted in Basic Solving Procedures, Expert Reviews, Snyder
Tagged Arnold Snyder, basic Sudoku, box/line, pencil marking, slink marking, subsets
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The 2013 Akron Sudoku Tournament
Here’s my report on the second successful Sudoku tournament put on by the Akron-Summit County Library. Yours truly didn’t complete a single puzzle in the contest, but I renewed acquaintance with some phenomenal solvers. I’m including a trace and checkpoint … Continue reading
Posted in Basic Solving Procedures
Tagged naked pairs, pencil marking, slink marking, Will Shortz
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Snapshots from Sheldon’s Master Class
Here are some images from the Master Class review puzzles that illustrate Systematic Sudoku solving in action. I deemed the collection strong in basic solving, with very limited excursions into advanced techniques. First is the #40 grid at the close … Continue reading
Slink Marking
This post is about the slink marking, the Sysudoku method of pencil marking. It explains why this form is far more useful than the keypad system seen in of most Sudoku publications. This fact is demonstrated here with a historically … Continue reading
