Here’s either a warm-up or cool-down crossword puzzle…

…to go with the one in the December issue of Scientific American:

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November 27, 2007 at 7:41 pm and is filed under Crosswords. You can follow any responses to this entry through the RSS 2.0 feed.
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November 28, 2007 at 1:17 pm
Especially challenging when trying to solve on the back of an envelope, and continually forgetting whether the yellow or the orange takes two letters!
November 28, 2007 at 4:43 pm
So, I’m guessing you cut off the instructions? Or did you recreate a color version of the grid on the back of an envelope? Either way, I admire your efforts at notching up the difficulty. Next time I’d suggest solving it while standing on a crowded, lurching subway with lights that keep flickering on and off.
November 29, 2007 at 11:46 am
I recommend solving on an envelope while referring to the screen. Worked like a charm.