Plaque With Numbers Inscribed On It. Found On The Sidewalk Outside A Building At My University
“It’s a most-perfect magic square where every subsquare of 4 also adds up to the same number, even if you “wrap around.” 9 + 6 + 16 + 3 = 34; 9 + 6 + 7 + 12 = 34; 5 + 11 + 16 +2 = 34. And also the diagonals and “broken diagonals:” 9 + 3 + 8 + 14 = 34; 16 + 6 + 1 +11 = 34. Its name is Chautisa Yantra and it’s pretty well known.” – Reddit / WizLiz