| 2230 | IMO Shortlist 2006 problem N4 | | 11 | | |
| 2234 | IMO Shortlist 2007 problem A1 | | 12 | | |
| 2240 | IMO Shortlist 2007 problem A7 | | 5 | | |
| 2246 | IMO Shortlist 2007 problem C6 | | 3 | | |
| 2249 | IMO Shortlist 2007 problem G1 | | 28 | | |
| 2252 | IMO Shortlist 2007 problem G4 | | 12 | | |
| 2262 | IMO Shortlist 2007 problem N6 | | 9 | | |
| 2264 | IMO Shortlist 2008 problem A1 | | 24 | | |
| 2265 | IMO Shortlist 2008 problem A2 | | 13 | | |
| 2274 | IMO Shortlist 2008 problem C4 | | 10 | | |
| 2277 | IMO Shortlist 2008 problem G1 | | 34 | | |
| 2283 | IMO Shortlist 2008 problem G7 | | 9 | | |
| 2289 | IMO Shortlist 2008 problem N6 | | 5 | | |
| 2292 | IMO Shortlist 2009 problem A3 | | 18 | | |
| 2295 | IMO Shortlist 2009 problem A6 | | 6 | | |
| 2303 | IMO Shortlist 2009 problem C7 | | 4 | | |
| 2305 | IMO Shortlist 2009 problem G1 | | 17 | | |
| 2306 | IMO Shortlist 2009 problem G2 | | 27 | | |
| 2313 | IMO Shortlist 2009 problem N1 | | 26 | | |
| 2558 | IMO Shortlist 2010 problem A1 | | 30 | | |
| 2564 | IMO Shortlist 2010 problem A7 | | 3 | | |
| 2569 | IMO Shortlist 2010 problem C4 | | 7 | | |
| 2574 | IMO Shortlist 2010 problem G2 | | 19 | | |
| 2576 | IMO Shortlist 2010 problem G4 | | 16 | | |
| 2584 | IMO Shortlist 2010 problem N5 | | 6 | | |
| 2586 | IMO Shortlist 2011 problem A1 | | 21 | | |
| 2591 | IMO Shortlist 2011 problem A6 | | 7 | | |
| 2593 | IMO Shortlist 2011 problem C1 | | 23 | | |
| 2595 | IMO Shortlist 2011 problem C3 | | 10 | | |
| 2607 | IMO Shortlist 2011 problem G8 | | 2 | | |
Školjka