Filed from 6 published puzzles

CADRES

Set to 4 different clues across 6 published puzzles, most often “Inner circles” — The New York Times, Sunday, 4 May 2008.

6 letters

Every clue on record, most used first

  • Inner circles2 times

    The New York Times — Sunday, 4 May 2008

  • Core groups2 times

    The New York Times — Sunday, 6 January 2008

  • Training groupsonce

    The New York Times — Thursday, 31 December 2009

  • Nucleionce

    The New York Times — Saturday, 4 October 2003

Other answers to these clues