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What’s up with the “How many triangles” question?

Monday, February 2nd, 2009

Just curious, it was a riddle I answered on able2know (see How many Triangles can you find in this Image?) that started to get a steady stream of visitors many years later. Just over the last few days the visitors have spiked, and I’m wondering where all the sudden interest in this puzzle is coming from. I suspect it’s something like a Facebook app that is becoming popular and if you happen to know of a Facebook app like this please let me know in the comments.