Historical clue formulations

• More tightly packed — 2022-12-19
• Not as bright — 2020-01-01
• Not as bright — 2016-09-18
• Not so smart — 2013-04-23
• Slower to pick up — 2011-10-23
• Grasping things more slowly — 2009-07-18
• Less astute — 2008-05-27
• Harder to follow, as prose — 1997-11-01
• Less clear — 1997-02-22
• Not as bright — 1996-09-28
• More compact — 1996-05-28
• More opaque — 1995-07-16