| 2290 | IMO Shortlist 2009 problem A1 | | 7 | | |
| 2291 | IMO Shortlist 2009 problem A2 | | 18 | | |
| 2292 | IMO Shortlist 2009 problem A3 | | 18 | | |
| 2293 | IMO Shortlist 2009 problem A4 | | 10 | | |
| 2294 | IMO Shortlist 2009 problem A5 | | 5 | | |
| 2295 | IMO Shortlist 2009 problem A6 | | 6 | | |
| 2296 | IMO Shortlist 2009 problem A7 | | 12 | | |
| 2297 | IMO Shortlist 2009 problem C1 | | 20 | | |
| 2298 | IMO Shortlist 2009 problem C2 | | 9 | | |
| 2299 | IMO Shortlist 2009 problem C3 | | 0 | | |
| 2300 | IMO Shortlist 2009 problem C4 | | 6 | | |
| 2301 | IMO Shortlist 2009 problem C5 | | 6 | | |
| 2302 | IMO Shortlist 2009 problem C6 | | 0 | | |
| 2303 | IMO Shortlist 2009 problem C7 | | 4 | | |
| 2304 | IMO Shortlist 2009 problem C8 | | 0 | | |
| 2305 | IMO Shortlist 2009 problem G1 | | 17 | | |
| 2306 | IMO Shortlist 2009 problem G2 | | 27 | | |
| 2307 | IMO Shortlist 2009 problem G3 | | 9 | | |
| 2308 | IMO Shortlist 2009 problem G4 | | 12 | | |
| 2309 | IMO Shortlist 2009 problem G5 | | 1 | | |
| 2310 | IMO Shortlist 2009 problem G6 | | 1 | | |
| 2311 | IMO Shortlist 2009 problem G7 | | 0 | | |
| 2312 | IMO Shortlist 2009 problem G8 | | 6 | | |
| 2313 | IMO Shortlist 2009 problem N1 | | 26 | | |
| 2314 | IMO Shortlist 2009 problem N2 | | 9 | | |
| 2315 | IMO Shortlist 2009 problem N3 | | 11 | | |
| 2316 | IMO Shortlist 2009 problem N4 | | 2 | | |
| 2317 | IMO Shortlist 2009 problem N5 | | 7 | | |
| 2318 | IMO Shortlist 2009 problem N6 | | 1 | | |
| 2319 | IMO Shortlist 2009 problem N7 | | 0 | | |