Monthly Archives: January 2019

KD Insane 485 Introduces the ALS Boomerang

Posted on January 29, 2019 by Sudent

This post is about the update of the 9/24/13 post on KrazyDad Insane v4, b8, n5. An unrecognized type of ANL found by Andrew Stuart’s Sudokuwiki solver is accorded a spotting technique, and a name suggesting the technique. When the … Continue reading →

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Insane 475 by Sudokuwiki and SASdC

Posted on January 22, 2019 by Sudent

In the updated review of the KrazyDad collection of puzzles, Andrew Stuart’s Sudokuwiki solver is a backup on advanced solving, except in irregular XYZ, coloring, pattern analysis, and trials. Prior to the update on Sysudoku review of Insane 475 in … Continue reading →

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The Especially Nice Loop of KD Insane 465

Posted on January 15, 2019 by Sudent

This post reports several features of an update of the post that introduced nice loop coloring. The illustrating nice loop was in itself remarkable. As shown already from books 1 through 5, KrazyDad’s hardest, the Insane collection, is hard enough … Continue reading →

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The Insane 455 Pink/Olive Pattern Trial

Posted on January 8, 2019 by Sudent

This post reports on the updated KrazyDad Insane still at its posted date of August 20, 2013, but now updated to continue the introduction of pattern slicing, or pink/olive pattern analysis, by showing how it leads to decisive trials when … Continue reading →

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Books 3 and 4 In the KD Insane Review

Posted on January 1, 2019 by Sudent

Welcome to 2019 Systematic Sudoku. This post continues on the updated KrazyDad v4 review, with KD Insane 435 and 445. This is a brief report on what you’ll find in the updated posts of August 2013. The review update begins … Continue reading →

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