PIET
| Date | Clue |
|---|---|
| 2024-04-14 | Painter Mondrian |
| 2021-06-06 | Abstract artist Mondrian |
| 2020-12-03 | Artist Mondrian |
| 2018-02-11 | Abstract artist Mondrian |
| 2013-11-13 | Painter Mondrian |
| 2008-07-16 | Painter Mondrian |
| 2008-01-13 | Painter Mondrian |
| 2007-09-05 | Painter Mondrian |
| 2004-02-07 | Artist Mondrian |
| 2002-07-28 | Artist Mondrian |
| 2002-02-20 | Painter Mondrian |
| 2001-12-02 | Painter Mondrian |
| 2001-04-16 | Artist Mondrian |
| 2001-02-17 | Artist Mondrian |
| 2000-04-16 | Painter Mondrian |
| 1999-06-06 | Mathematician Hein |
| 1999-04-29 | Artist Mondrian |
| 1996-03-13 | Artist Mondrian |
| 1994-02-19 | Artist Mondrian |