Martina Birk
Vanishing Leprechaun, Disappearing Dwarf and Swinging Sixties Pin-up Girls puzzles in pictures |
Vanishing Leprechaun, Disappearing Dwarf and Swinging Sixties Pin-up Girls – puzzles in pictures
A pictorial history of a much-loved, much-imitated geometrical illusion
Blogpost: The Vanishing Leprechaun puzzle explained
Tue 1 Apr 2014 02.00 EDT Last modified on Thu 2 Apr 2020 11.14 EDT
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