Here’s a warm-up crossword (click the box to download a pdf):
It uses the same concept as the one in the December
issue of Scientific American (click to visit their site):
Pat Tricks
Patrick Merrell: The puzzling art of puzzles and art
PATRICK MERRELL’S WEB SITE
Cheep Trills
Wordplay highlights
For the Birds
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Especially challenging when trying to solve on the back of an envelope, and continually forgetting whether the yellow or the orange takes two letters!
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.
I recommend solving on an envelope while referring to the screen. Worked like a charm.