“I assumed the code would be cracked in a fairly short time,” [Sanborn] said, adding that the intrusions on his life from people who think they have solved his fourth puzzle are more than he expected. So now, after 20 years, Mr. Sanborn is nudging the process along. He has provided The New York Times with the answers to six letters in the sculpture’s final passage. The characters that are the 64th through 69th in the final series on the sculpture read NYPVTT. When deciphered, they read BERLIN.
Everything should be made as simple as possible, but not simpler. -- Albert Einstein