MUON
Set to 6 different clues across 9 published puzzles, most often “Unstable particle” — The New York Times, Friday, 4 December 2009.
4 letters
Every clue on record, most used first
- Unstable particle3 times
The New York Times — Friday, 4 December 2009
- Elementary particle2 times
The New York Times — Monday, 17 December 2007
- Particle created by a cosmic rayonce
The New York Times — Sunday, 26 August 2007
- Atomic particleonce
The New York Times — Monday, 22 May 2006
- Unstable leptononce
The New York Times — Friday, 2 September 2005
- Physics particleonce
The New York Times — Thursday, 7 August 1997