Historical clue formulations

• Face shapes — 2025-03-17
• Slices of hard-boiled eggs, for instance — 2025-03-07
• NASCAR circuits, geometrically — 2024-07-15
• Racetrack shapes — 2024-03-12
• Cricket fields and badminton racket heads, for two — 2022-05-19
• Cricket fields, e.g. — 2021-09-04
• 0 0 0 — 2019-08-18
• Ford and Kia logos — 2015-07-18
• Toilet seats, geometrically — 2015-05-04
• Eggs, e.g. — 2014-12-28
• What many racers race on — 2014-06-07
• Track shapes — 2012-04-10
• Most toilet seats — 2010-12-08
• Cameo shapes — 2010-07-14
• Racetrack shapes — 2010-04-26
• Egg shapes — 2010-03-30
• Cameo shapes — 2009-03-31
• Tracks — 2008-10-23
• Racetracks — 2008-01-15
• Flattened circles — 2007-01-22
• Nascar circuits — 2006-12-03
• Toilet seats, e.g. — 2006-03-18
• Picture frames lacking corners — 2006-01-23
• Most cricket grounds — 2005-04-07
• Spaces for races — 2003-07-12
• Racing paths — 2003-05-02
• Tracks — 2000-07-30
• Race tracks — 1998-05-12
• Tracks — 1997-09-07
• Some windows — 1997-07-19
• Some picture frames — 1997-07-13
• Tracks — 1997-06-29
• Places for races — 1997-01-19
• Amphitheaters — 1996-07-28
• Round figures — 1995-05-25
• Cartouches — 1994-11-04
• Race tracks — 1994-07-18
• Some tracks — 1993-11-22