A human hand holds a single puzzle part.

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Size: 2667px × 4000px
Photo credit: © Daniel Kaesler / Alamy / Afripics
License: Royalty Free
Model Released: Yes

Keywords: answer, brainstorming, effect, fiddly, finger, hand, kludge, metaphor, mystery, mystique, piece, problem, puzzle, result, riddle, solution, solve, tricky