Tag Archives: nice loop coloring

Lucky Panda 240 Rides Nice Loop Coloring


The candidates of a nice loop form a coloring cluster. This review puzzle from the Lucky Panda Sudoku review illustrates a decisive nice loop coloring. Two hidden UR 2 show up as well. After a productive bypass and box marking, … Continue reading

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The Especially Nice Loop of KD Insane 465


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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Closing Very Hard v.2 with the Real 38


To be fair, here is my do over of the real Ardv2 38, the one with a given 7 in r7c6.  My omission of it hatched a productive distraction, having no bearing on the collection it came from. The basic … Continue reading

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Hodoku’s Continuous Nice Loops


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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Nice Loop Coloring of Insane 465


This post introduces nice loop coloring, with a very special nice loop. Pattern slicing has a cameo role. The solution comes in a color trial suggested by  nice loop extensions. Stingiest on the bypass, 465 gives no more clues in … Continue reading

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Shortz’ Ferocious Hall of Mirrors


This post recounts the solving of Beware 190, the review puzzle from Will Shortz’ collection book Ferocious Sudoku which has multiple solutions.  On another multiple solution puzzle, Frank Longo’s  Absolutely Nasty Level 4 puzzle 61(Review Snaps II 3/12/13), I used … Continue reading

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