Historical clue formulations

• Sharper — 2026-03-02
• More discerning — 2023-05-04
• More discerning — 2017-03-01
• More pointed — 2013-11-15
• Sharper — 2006-07-16
• Relatively sharp — 2001-07-07
• More serious — 2000-02-26
• More sharp — 1995-11-26
• More pronounced — 1995-01-12
• More critical — 1994-07-31