RHO
Set to 42 different clues across 83 published puzzles, most often “Fraternity letter” — The New York Times, Wednesday, 9 February 2011.
3 letters
Every clue on record, most used first
- Fraternity letter11 times
The New York Times — Wednesday, 9 February 2011
- Density symbol7 times
The New York Times — Sunday, 27 September 2009
- Pi follower6 times
The New York Times — Thursday, 9 November 2006
- P5 times
The New York Times — Saturday, 26 July 2008
- Letter before sigma4 times
The New York Times — Monday, 18 April 2011
- Density symbol, in physics4 times
The New York Times — Sunday, 13 March 2011
- Letter after pi3 times
The New York Times — Tuesday, 1 June 2010
- Letter between pi and sigma3 times
The New York Times — Monday, 17 August 2009
- Sorority letter3 times
The New York Times — Saturday, 24 January 2004
- P, in Greece2 times
The New York Times — Tuesday, 19 October 2010
- Pi's follower2 times
The New York Times — Monday, 23 June 2008
- Fraternity character2 times
The New York Times — Thursday, 28 June 2007