If you’re into sudoku, you might want to try a variation that appears weekly (free) on Scientific American’s Web site called SCI-DOKU [click here]. The puzzles use letters instead of numbers and, when completed, one row or column spells out an answer to a science-related clue.


2 Responses to 3. SCI-DOKU

  1. ChartsNPL says:

    I’ve been doing Sci-do-ku for a couple of months. They’re fun, some of my number-averse friends find them less daunting than regular sudoku…. (what is the plural?)


  2. trickme says:

    Thanks, Charts. I remember Will Shortz once saying the plural of sudoku was sudoku.

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