| 1981 | IMO Shortlist 1997 problem 25 | | 0 | | |
| 1982 | IMO Shortlist 1997 problem 26 | | 0 | | |
| 1983 | IMO Shortlist 1998 problem A1 | | 12 | | |
| 1984 | IMO Shortlist 1998 problem A2 | | 13 | | |
| 1985 | IMO Shortlist 1998 problem A3 | | 10 | | |
| 1986 | IMO Shortlist 1998 problem A4 | | 0 | | |
| 1987 | IMO Shortlist 1998 problem A5 | | 3 | | |
| 1988 | IMO Shortlist 1998 problem C1 | | 3 | | |
| 1989 | IMO Shortlist 1998 problem C2 | | 2 | | |
| 1990 | IMO Shortlist 1998 problem C3 | | 3 | | |
| 1991 | IMO Shortlist 1998 problem C4 | | 1 | | |
| 1992 | IMO Shortlist 1998 problem C5 | | 10 | | |
| 1993 | IMO Shortlist 1998 problem C6 | | 0 | | |
| 1994 | IMO Shortlist 1998 problem C7 | | 3 | | |
| 1995 | IMO Shortlist 1998 problem G1 | | 8 | | |
| 1996 | IMO Shortlist 1998 problem G2 | | 2 | | |
| 1997 | IMO Shortlist 1998 problem G3 | | 5 | | |
| 1998 | IMO Shortlist 1998 problem G4 | | 2 | | |
| 1999 | IMO Shortlist 1998 problem G5 | | 3 | | |
| 2000 | IMO Shortlist 1998 problem G6 | | 0 | | |
| 2001 | IMO Shortlist 1998 problem G7 | | 1 | | |
| 2002 | IMO Shortlist 1998 problem G8 | | 3 | | |
| 2003 | IMO Shortlist 1998 problem N1 | | 15 | | |
| 2004 | IMO Shortlist 1998 problem N2 | | 4 | | |
| 2005 | IMO Shortlist 1998 problem N3 | | 4 | | |
| 2006 | IMO Shortlist 1998 problem N4 | | 3 | | |
| 2007 | IMO Shortlist 1998 problem N5 | | 4 | | |
| 2008 | IMO Shortlist 1998 problem N6 | | 6 | | |
| 2009 | IMO Shortlist 1998 problem N7 | | 3 | | |
| 2010 | IMO Shortlist 1998 problem N8 | | 3 | | |
Školjka