Historical clue formulations

• White sight in an expanse of blue — 2024-11-03
• Drifting ice mass — 2022-12-27
• Big chip off the old block? — 2022-07-19
• Ice ___ — 2022-06-08
• Drifting ice — 2022-04-05
• Barents Sea sight — 2021-11-06
• Hazard on an Arctic voyage — 2021-03-14
• Raft for a polar bear — 2020-12-21
• Sheet of ice — 2020-01-29
• Sheet — 2019-02-09
• White sheet — 2018-12-02
• Ice sheet — 2018-05-07
• Resting place for a polar bear — 2017-03-19
• Penguin's perch — 2017-02-03
• Arctic shipping hazard — 2016-12-22
• Arctic drifter — 2015-11-19
• Chunk of ice in the Arctic Ocean — 2015-06-29
• Ice chunk at sea — 2015-05-11
• Ice mass — 2014-12-23
• Arctic ice — 2014-01-16
• Floating arctic mass — 2013-03-18
• Penguin's spot, maybe — 2012-09-09
• Floating arctic mass — 2012-03-12
• Polar hazard — 2011-10-30
• Ice sheet — 2010-04-28
• Penguin's hangout — 2010-03-10
• Arctic mass — 2008-12-30
• Big chunk of ice — 2008-12-03
• A polar bear might be found on one — 2008-02-04
• White sheet — 2007-05-27
• Weddell Sea phenomenon — 2006-12-30
• Sheet of ice — 2006-09-17
• Sheet of ice — 2006-08-21
• Ice sheet — 2004-09-27
• Polar bear's transport? — 2003-07-14
• Arctic ice — 2003-05-20
• Ice ___ — 2003-04-25
• Arctic sight — 2003-02-20
• Ice sheet — 2002-09-23
• Baffin Bay hazard — 2002-08-29
• Arctic ice — 2002-01-22
• Hull hazard — 2001-08-16
• Arctic sight — 2001-08-09
• Sheet of ice — 2001-02-26
• Arctic phenomenon — 2001-01-15
• Certain sheet — 1999-07-03
• Baffin Bay sight — 1999-05-13
• Sheet — 1998-10-03
• Sheet of ice — 1998-05-04
• Ice ___ — 1997-05-29