Historical clue formulations

• Venture, as a guess — 2026-08-10
• Pond or sand trap — 2015-05-24
• Sand trap, e.g. — 2009-03-17
• Black ice, e.g. — 2006-08-27
• Sand trap, for one — 2005-07-11
• Thin ice, e.g. — 2005-06-19
• Risk — 2000-03-22