the.com/jigsaw puzzle

A picture that punishes you for a thousand pieces before rewarding you once.

means A picture cut into interlocking pieces that you must fit back together, assembled for fun rather than frustration (usually).

from From 'jigsaw,' the narrow vertical saw used in the 1800s to cut thin curved lines in wood — exactly the kind of wiggly cuts needed to slice a picture-mounted board into interlocking shapes. The earliest versions, made in the 1760s, were actually cut with a handheld marquetry saw and sold as educational 'dissected maps' for teaching geography; the name 'jigsaw puzzle' caught on later once the powered jigsaw became the tool of choice for mass-producing them.

origin
18th century mapmaker cut up a map to teach geography
edge pieces
always do these first, no exceptions
corner myth
only four corners, yet everyone checks twice
sky pieces
the final boss of any puzzle
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