Monthly Archives: September 2015

Decoding Hodoku Chain Notes

Posted on September 29, 2015 by Sudent

This post comments on the first part of the Hodoku “Chains and Loops” page. It reveals the premise dependent view of chains to be based on computer coding, and unsuited for human solving advice. It explains Hodoku’s chain notations as … Continue reading →

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Hodoku’s Limited XYZ Wings

Posted on September 22, 2015 by Sudent

In this post reviewing the Hodoku Wings page linked under Techniques, we see how an expert programmer can go wrong in explaining how to recognize where a technique applies and why it works . The omission of irregular wings is … Continue reading →

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Hodoku Sue de Coq in 2015

Posted on September 15, 2015 by Sudent

This post reveals the Hodoku view of Sue de Coq, reflecting an earlier expert consensus, to be dated. His classic examples are good, but the examples of Hodoku’s “Extended Variation” of Sue de Coq are better interpreted as simply the … Continue reading →

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Hodoku Unique Rectangles

Posted on September 8, 2015 by Sudent

This post lists the Hodoku UR techniques in a convenient reference sheet, and illustrates many of the examples in a more explicit Sysudoku format. I review Sysudoku principles for UR exploitation, and call attention to the Hodoku omission of forcing … Continue reading →

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An Unusual Review

Posted on September 1, 2015 by Sudent

This begins a review of the advanced techniques of Hodoku, Bernhard Hobiger’s puzzle generator and solver, as described on the Hodoku site’s Techniques page. The post describes the Hodoku program and the special nature of this review. Hodoku is primarily … Continue reading →

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