Tag Archives: Sudoku 2-D trace

SudoRules’ Hidden Singles Reverse Engineered

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

Posted in Basic Solving Procedures, Berthier, Expert Reviews | Tagged , , , , | 6 Comments