Historical clue formulations

• Severity — 2026-07-21
• Intellectual thoroughness — 2026-07-06
• Opposite of laxness — 2024-07-01
• Severity — 2018-10-02
• Difficulty — 2018-08-12
• Attention to detail — 2016-04-10
• Extreme hardship — 2015-07-29
• Severity — 2013-11-11
• Severity — 2012-07-30
• Harshness — 2011-12-27
• Stiffness — 2010-10-27
• Ordeal's quality — 2007-09-19
• Harshness — 2007-02-25
• Severity — 2005-11-28
• Severity — 2005-08-28
• Lack of laxness — 2005-07-12
• Stiffness — 2005-07-06
• Severity — 2003-02-16
• Asperity — 2001-05-11
• Austerity — 2001-04-01
• Inexorability — 2001-03-10
• Boot camp experience — 2000-10-30
• Hardship — 2000-05-07
• Demanding standard — 2000-03-08
• Hardship — 1999-12-06
• Asperity — 1999-04-03
• Discipline — 1998-03-02
• Severity — 1998-02-09
• Strictness — 1997-11-15
• Hardship — 1997-06-29
• Exactitude — 1997-06-15
• Hardship — 1996-11-18
• Hardship — 1996-05-20
• Harshness — 1995-02-13
• Severity — 1994-12-07
• Asperity — 1994-12-03
• Stringency — 1994-10-14
• Exactitude — 1994-08-28
• Inflexibility — 1994-02-16