CORTEX
Set to 6 different clues across 6 published puzzles, most often “Outer layer of the cerebrum” — The New York Times, Thursday, 9 June 2011.
6 letters
Every clue on record, most used first
- Outer layer of the cerebrumonce
The New York Times — Thursday, 9 June 2011
- Center of learningonce
The New York Times — Friday, 20 February 2009
- Learning centeronce
The New York Times — Saturday, 28 August 2004
- Memory siteonce
The New York Times — Friday, 3 November 2000
- Brain coveronce
The New York Times — Friday, 12 January 1996
- Outer layeronce
The New York Times — Saturday, 4 June 1994