• jigsawdoku

    From Richard Heathfield@21:1/5 to All on Tue Jul 14 18:44:19 2020
    My ability to solve Killer Sudoku went from zero to hero when I learned
    the 45 rule.

    That rule applies to Jigsawdoku too, of course, but it's far less
    useful. In fact, I have yet to find a useful equivalent for Jigsawdoku,
    after several years (on and off!) of looking; in the absence of such a
    rule, a Jigsawdoku puzzle remains a trial rather than a treasure.

    My curiosity has finally overcome my guilt, so I'll ask: *is* there such
    a rule?

    Richard Heathfield
    Email: rjh at cpax dot org dot uk
    "Usenet is a strange place" - dmr 29 July 1999
    Sig line 4 vacant - apply within

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