Category Archives: Hobiger

Hodoku ALS Death Blossoms

Posted on January 12, 2016 by Sudent

This post finishes the review of Bernhard Hobinger’s Hodoku, with his Death Blossom page, featuring two insightful examples. The Sysudoku diagrams are followed by a summary of the site evaluations and Sysudoku lessons learned from this extensive site. I began … Continue reading →

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Hodoku ALS Chains

Posted on January 5, 2016 by Sudent

This post explains the Hodoku ALS wing and chain as special ALS node AIC ANL with toxic set groups defined by ALS nodes. This is how they should be constructed, so as to leave the mind’s door open for more … Continue reading →

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Hodoku ALS-XZ

Posted on December 29, 2015 by Sudent

For your after Christmas Sudoku fix, this post is about Hodoku’s ALS-XZ, a label favored by most writers. I prefer the term ALS toxic sets, associating the method with others by the goal of identifying a set of candidates guaranteed … Continue reading →

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Hodoku Franken Fish

Posted on December 22, 2015 by Sudent

This post proposes a spotting technique for Franken Fish, based on the Hodoku’s Mutant Jellyfish example cited earlier in this review. It also shows how Sysudoku fish analysis techniques apply to Franken fish. Finally it reports how pattern analysis surpasses … Continue reading →

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Hodoku’s Multiple Fin Krakens

Posted on December 15, 2015 by Sudent

This post finds multiple fin kraken swordfish, with additional removals, where Hodoku overlooks kraken analysis. This prompts an examination of the Hodoku kraken fish examples in its Last Resorts section, which offer no guidance for human solving. The homework was … Continue reading →

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Kraken Fish Invade Hodoku’s Pond

Posted on December 8, 2015 by Sudent

This post starts with a homework checkpoint on single fin kraken analysis, via the blank line tally and suset scratchpad. The homework demonstrates an essential technique for finned fish that is missing from Hodoku. Then these sysudokie techniques find additional … Continue reading →

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Hodoku Goes Fishing

Posted on December 1, 2015 by Sudent

This post reviews Sysudoku techniques and tools for regular and finned fish, using them to enumerate the finned fish in a Hodoku Franken fish (boxes and lines) example. The introductory Hodoku Fish page describes the highly theoretical approach coded into … Continue reading →

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Hodoku Grouped AIC II

Posted on November 24, 2015 by Sudent

This post continues with two more Hodoku examples, which illustrate how a human solver finds grouped AIC. As usual, Hobinger attributes them to making just the right premise at just the right place. In the Hodoku Grouped AIC section, the … Continue reading →

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Hodoku Grouped AIC I

Posted on November 17, 2015 by Sudent

This post uses two grouped AIC ANL from Hodoku to illustrate how such chains are inspired and constructed. After the first, readers are challenged to try this approach on the following examples, with checkpoint to follow. I was prepared to … Continue reading →

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Hodoku’s Continuous Nice Loops

Posted on November 10, 2015 by Sudent

This post considers the terminology of nice loops prevalent when Hodoku was put up. It also demonstrates nice loop coloring, an important reason to reject another Hodoku assertion. And it also transcribes two Hodoku nice loop examples for better access … Continue reading →

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