Historical clue formulations

• Affectionate sign-off — 2025-09-24
• Affectionate sign-off — 2019-11-06
• Tic-tac-toe loser — 2019-04-28
• Worthless tic-tac-toe row — 2014-03-19
• Affectionate sign-off — 2012-11-28
• Certain losing line — 2012-07-20
• Losing row — 2012-02-22
• Tic-tac-toe loser — 2004-04-11
• Noughts-and-crosses line — 1999-04-29