Image source. (Spoiler alert.)
This puzzle has a visual trick that's central to the theme. The solution below explains what's going on, but if you'd like a hint while you're solving, consider this: what changes about the grid and the entries as you move down?
PDF:
thefullspectrum
.pdf
Download PDF • 154KB
Answer key:
thefullspectrum-answers
.pdf
Download PDF • 464KB
Online: