Historical clue formulations

• Dark beer variety — 2026-03-13
• German beer historically consumed by monks — 2024-10-11
• Strong German brew — 2022-06-08
• Strong, dark quaff — 2021-12-24
• Strong brew — 2019-11-17
• Dark beer — 2018-05-19
• Dark quaff — 2011-09-03
• Dark beer — 1999-04-28