Category Archives: Sheldon

Tom Sheldon in Sudoku Master Class

Tom Sheldon on Sudoku Solving

Happy Mardi Gras! Here are the notes l took in Tom Sheldon’s Master Class.  I don’t like to start without pictures, so I’ll checkpoint the line marking of Master Class # 70 first. The 2D trace trails off after a … Continue reading

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Grading the Master Class

Tom Sheldon deserves a lot of credit, or blame if you prefer,  for introducing me to serious Sudoku solving.  I pored over the instruction section of his puzzle book, Sudoku Master Class, intrigued by the very idea of a master … Continue reading

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