Monthly Archives: October 2016

SudoRules’ Hidden Singles Reverse Engineered

Posted on October 25, 2016 by Sudent

Here, Denis Berthier’s trace of a SudoRules basic level puzzle in his The Hidden Logic of Sudoku is reverse engineered to show how it finds hidden singles. Although the method is related to line marking, it is not a practical … Continue reading →

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Berthier’s Hidden Logic of Sudoku

Posted on October 18, 2016 by Sudent

This post begins a sysudokie reading of Denis Berthier’s weighty and challenging treatise on Sudoku, The Hidden Logic of Sudoku, or in this report, THLS. I start with an overview of the agenda of the book, which  differs greatly from … Continue reading →

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Green’s Labor Day Sunday 5-Star

Posted on October 11, 2016 by Sudent

The last Sudoku of Dave Green’s Labor Day Weekend, the Sunday 5-Star, has a challenging sysudokie bypass and line marking, barely staying within the lines of basic solving. Even on a ©PowerPoint grid, this puzzle would be a nightmare with … Continue reading →

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Green’s Labor Day Weekend Workout

Posted on October 4, 2016 by Sudent

Here I checkpoint the bypass on the correct version of Dave Green’s 9/03/16 Saturday 4-Star, and assign my readers to try the bypass on his Sunday puzzle. The series of three demonstrates how the challenge and efficiency of the bypass … Continue reading →

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