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 | | 2 | | |
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 | | |