From: Jen H.
Sent: April 29, 2014
To: undisclosed recipients
Subject: Fw: A Janitor Secretly Worked On This For 7 Years
Twitter user Kya7y’s dad, who was a janitor at a university in Japan, spent more than 7 years working on this…
…30 years ago.
To this point, he has remained completely anonymous and wants no public recognition for his phenomenal work.
Even more incredible, it seems to be completely unsolvable.