Historical clue formulations

• Chest: Prefix — 2025-10-24
• Lead-in to -scope — 2021-09-05
• Start to -scope — 2017-01-08
• Prefix with -scope — 2014-09-28
• Chest: Prefix — 2010-11-09
• Prefix with scope — 2003-10-22
• Chest: Prefix — 2001-04-15
• Prefix with scope — 1998-01-30