ENIGMA
Set to 21 different clues across 30 published puzzles, most often “Riddle” — The New York Times, Tuesday, 24 November 2009.
6 letters
Every clue on record, most used first
- Riddle4 times
The New York Times — Tuesday, 24 November 2009
- Mystery3 times
The New York Times — Monday, 11 October 1999
- Head-scratcher2 times
The New York Times — Saturday, 30 January 2010
- Stumper2 times
The New York Times — Saturday, 15 February 2003
- Poser2 times
The New York Times — Thursday, 1 August 2002
- Puzzle2 times
The New York Times — Tuesday, 20 May 1997
- Appropriately named monthly of the National Puzzlers' League, with "The"once
The New York Times — Sunday, 21 February 2010
- Knotonce
The New York Times — Saturday, 1 September 2007
- Conundrumonce
The New York Times — Tuesday, 5 June 2007
- It's not clearonce
The New York Times — Sunday, 11 December 2005
- It's hard to understandonce
The New York Times — Saturday, 19 February 2005
- "Hmm?" induceronce
The New York Times — Sunday, 20 July 2003