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Tag Archives: basic Sudoku
Recovering From a Small Disaster
This post corrects an incorrect homework assignment, and announces some changes in Sysudoku due to a switch to a new computer and updated operating system. Last week was not a good one. On Tuesday I posted an incorrect puzzle for … Continue reading
Posted in Basic Solving Procedures
Tagged basic Sudoku, Bradley Hand ITC, Dave Green, pencil marking, slink marking bypass
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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 Empathy of Nikoli Composers?
Here we briefly consider Nikoli claims of a “human touch” quality in their puzzles, and continue demonstrating Sysudoku basic technique with X-treme Sudoku review puzzles. These are presented by Nikoli as their toughest. Is there a communication between Sudoku composer … Continue reading
Nikoli’s X-treme Sudoku
Here we begin a series of reviews that are a clinic on Sysdudoku basic solving skills. Each collection of the survey will be introduced, with several puzzles checkpointed by 2-D traces. This post introduces the Nikoli Publishing top toughy, the … Continue reading
Posted in Basic Solving Procedures, Puzzle Reviews
Tagged 2-D trace, basic Sudoku, Nikoli
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Starting With Stephens
This begins a review of Paul Stephens’ solving recommendations and puzzles. The review is based on Paul’s currently offered books, Mastering Sudoku Week by Week, subtitled “52 steps to becoming a Sudoku wizard” , and his The Sudoku Addict’s Handbook. … Continue reading
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
Thoughts on Sudoku Basic Solving
This post concludes my series of posts on basic solving, the actions taken to identify all candidates. As the October posts have shown, sysudoku basic solving also identifies and marks strong links and locked sets in boxes and lines. It … Continue reading
Posted in Basic Solving Procedures, Sudoku Toolware
Tagged 2-D trace, basic Sudoku, difficulty level
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