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  1. nds (nds@dent.smithfam.info)'s status on Wednesday, 20-Sep-2017 09:39:25 EDT nds nds
    Knuth distributed this puzzle to attendees of one of his talks

    https://www.youtube.com/watch?v=g4lhrVPDUG0

    the hint is: the upper left corner position is given. It requires no conjecture to complete. https://dent.smithfam.info/attachment/31244
    In conversation Wednesday, 20-Sep-2017 09:39:25 EDT from dent.smithfam.info permalink
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