| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1201. R Cifuentes vs Sosonko |
| ½-½ | 20 | 1997 | Dutch Championship | E10 Queen's Pawn Game |
| 1202. Sosonko vs J Piket |
| ½-½ | 17 | 1997 | Dutch Championship | E04 Catalan, Open, 5.Nf3 |
| 1203. I Sokolov vs Sosonko |
| 1-0 | 47 | 1997 | Dutch Championship | D38 Queen's Gambit Declined, Ragozin Variation |
| 1204. Sosonko vs Nijboer |
| ½-½ | 55 | 1997 | Dutch Championship | E98 King's Indian, Orthodox, Taimanov, 9.Ne1 |
| 1205. Sosonko vs L Riemersma |
| 1-0 | 22 | 1997 | Dutch Championship | E60 King's Indian Defense |
| 1206. E van den Doel vs Sosonko |
| 0-1 | 30 | 1997 | Dutch Championship | A07 King's Indian Attack |
| 1207. Sosonko vs Van der Wiel |
| ½-½ | 12 | 1997 | Dutch Championship | A41 Queen's Pawn Game (with ...d6) |
| 1208. Van der Sterren vs Sosonko |
| ½-½ | 42 | 1997 | Dutch Championship | D38 Queen's Gambit Declined, Ragozin Variation |
| 1209. Sosonko vs P Nikolic |
| ½-½ | 20 | 1997 | Dutch Championship | E17 Queen's Indian |
| 1210. K van der Weide vs Sosonko |
| 0-1 | 48 | 1997 | Dutch Championship | A07 King's Indian Attack |
| 1211. E Jiretorn vs Sosonko |
| 0-1 | 37 | 1997 | Viking Open | E04 Catalan, Open, 5.Nf3 |
| 1212. Sosonko vs I Rausis |
| ½-½ | 20 | 1997 | Viking Open | E06 Catalan, Closed, 5.Nf3 |
| 1213. M Orsag vs Sosonko |
| ½-½ | 19 | 1997 | Viking Open | D38 Queen's Gambit Declined, Ragozin Variation |
| 1214. Sosonko vs J Kopal |
| 1-0 | 34 | 1997 | Viking Open | A94 Dutch, Stonewall with Ba3 |
| 1215. E Kengis vs Sosonko |
| ½-½ | 13 | 1997 | Viking Open | A08 King's Indian Attack |
| 1216. Sosonko vs Hjartarson |
| ½-½ | 20 | 1997 | Viking Open | E17 Queen's Indian |
| 1217. Sosonko vs Plachetka |
| 1-0 | 46 | 1997 | Viking Open | A46 Queen's Pawn Game |
| 1218. A Greenfeld vs Sosonko |
| 1-0 | 39 | 1997 | Viking Open | D38 Queen's Gambit Declined, Ragozin Variation |
| 1219. Sosonko vs R Bator |
| 1-0 | 27 | 1997 | Viking Open | A31 English, Symmetrical, Benoni Formation |
| 1220. J Piket vs Sosonko |
| ½-½ | 42 | 1998 | Dutch Championship | D38 Queen's Gambit Declined, Ragozin Variation |
| 1221. Sosonko vs P Nikolic |
| ½-½ | 18 | 1998 | Dutch Championship | E00 Queen's Pawn Game |
| 1222. Nijboer vs Sosonko |
| ½-½ | 31 | 1998 | Dutch Championship | B64 Sicilian, Richter-Rauzer Attack |
| 1223. Sosonko vs Van der Sterren |
| 1-0 | 38 | 1998 | Dutch Championship | A46 Queen's Pawn Game |
| 1224. K van der Weide vs Sosonko |
| 0-1 | 66 | 1998 | Dutch Championship | B63 Sicilian, Richter-Rauzer Attack |
| 1225. D Reinderman vs Sosonko |
| ½-½ | 21 | 1998 | Dutch Championship | B50 Sicilian |
Kibitzing
