| 2025-11-24 | Like pen smudges |
| 2025-07-03 | Pac-Man ghost with the shortest name |
| 2023-12-30 | Completely black, as the sky |
| 2023-11-05 | Like a leaky pen |
| 2023-02-04 | Black as night |
| 2022-09-10 | Jet |
| 2022-01-27 | Like a stamp pad |
| 2021-08-05 | Stained, in a way |
| 2021-02-21 | Black |
| 2021-01-23 | Like presses |
| 2019-09-15 | Black |
| 2017-09-22 | Extremely dark |
| 2017-07-02 | Black as night |
| 2016-06-22 | Pitch-black |
| 2015-08-04 | Pitch-black |
| 2015-02-16 | Jet-black |
| 2013-01-10 | Black |
| 2011-01-02 | One of the Pac-Man ghosts |
| 2010-12-16 | Black |
| 2010-09-28 | Black |
| 2009-01-24 | Black as night |
| 2007-10-17 | Like a starless sky |
| 2004-11-17 | Jet black |
| 2004-04-10 | Pitch-black |
| 2003-12-17 | Black |
| 2003-04-27 | Deep black |
| 2003-01-09 | Black |
| 2000-05-14 | Black |
| 1999-07-04 | Pitch-dark |
| 1998-12-06 | Blackened |
| 1998-11-08 | Black |
| 1997-12-12 | Very dark |
| 1997-10-09 | Black |
| 1997-09-18 | Black and wet |
| 1997-07-27 | Black |
| 1997-05-10 | Black |
| 1997-04-02 | Like an octopus's defense |
| 1997-02-12 | Like an octopus's defense |
| 1996-11-28 | Very dark |
| 1996-11-03 | Black |
| 1996-02-26 | Like printers' fingers |