| 1953 | IMO Shortlist 1996 problem N2 | | 3 | | |
| 1957 | IMO Shortlist 1997 problem 1 | | 0 | | |
| 1960 | IMO Shortlist 1997 problem 4 | | 3 | | |
| 1964 | IMO Shortlist 1997 problem 8 | | 2 | | |
| 1973 | IMO Shortlist 1997 problem 17 | | 5 | | |
| 1977 | IMO Shortlist 1997 problem 21 | | 2 | | |
| 1980 | IMO Shortlist 1997 problem 24 | | 0 | | |
| 1987 | IMO Shortlist 1998 problem A5 | | 3 | | |
| 1992 | IMO Shortlist 1998 problem C5 | | 12 | | |
| 1995 | IMO Shortlist 1998 problem G1 | | 8 | | |
| 1997 | IMO Shortlist 1998 problem G3 | | 5 | | |
| 2003 | IMO Shortlist 1998 problem N1 | | 17 | | |
| 2008 | IMO Shortlist 1998 problem N6 | | 6 | | |
| 2011 | IMO Shortlist 1999 problem A1 | | 7 | | |
| 2015 | IMO Shortlist 1999 problem A5 | | 5 | | |
| 2021 | IMO Shortlist 1999 problem C5 | | 3 | | |
| 2026 | IMO Shortlist 1999 problem G3 | | 3 | | |
| 2029 | IMO Shortlist 1999 problem G6 | | 6 | | |
| 2032 | IMO Shortlist 1999 problem N1 | | 13 | | |
| 2038 | IMO Shortlist 2000 problem A1 | | 31 | | |
| 2042 | IMO Shortlist 2000 problem A5 | | 1 | | |
| 2045 | IMO Shortlist 2000 problem C1 | | 12 | | |
| 2052 | IMO Shortlist 2000 problem G2 | | 24 | | |
| 2058 | IMO Shortlist 2000 problem G8 | | 7 | | |
| 2061 | IMO Shortlist 2000 problem N3 | | 11 | | |
| 2070 | IMO Shortlist 2001 problem A6 | | 26 | | |
| 2072 | IMO Shortlist 2001 problem C2 | | 15 | | |
| 2078 | IMO Shortlist 2001 problem C8 | | 3 | | |
| 2080 | IMO Shortlist 2001 problem G2 | | 10 | | |
| 2086 | IMO Shortlist 2001 problem G8 | | 4 | | |
Školjka