Game |
| Result | Moves |
Year | Event/Locale | Opening |
26. J Schammo vs B De Bruycker |
| 0-1 | 19 | 1975 | 1st EEC Team Championship | B06 Robatsch |
27. J Seret vs J Schammo |
| 1-0 | 41 | 1975 | 1st EEC Team Championship | B40 Sicilian |
28. J Schammo vs G Ligterink |
| 0-1 | 32 | 1976 | Haifa Olympiad | B45 Sicilian, Taimanov |
29. A H Williams vs J Schammo |
| ½-½ | 43 | 1976 | Haifa Olympiad | A41 Queen's Pawn Game (with ...d6) |
30. Petursson vs J Schammo |
| 1-0 | 34 | 1976 | Haifa Olympiad | A21 English |
31. J Schammo vs P Darakorn |
| 1-0 | 61 | 1976 | Haifa Olympiad | B80 Sicilian, Scheveningen |
32. R W Smith vs J Schammo |
| ½-½ | 40 | 1976 | Haifa Olympiad | A04 Reti Opening |
33. P Ramirez vs J Schammo |
| ½-½ | 23 | 1976 | Haifa Olympiad | B21 Sicilian, 2.f4 and 2.d4 |
34. F Cote vs J Schammo |
| ½-½ | 43 | 1976 | Haifa Olympiad | B83 Sicilian |
35. J Schammo vs A Palacios |
| 0-1 | 31 | 1976 | Haifa Olympiad | B47 Sicilian, Taimanov (Bastrikov) Variation |
36. E Ermenkov vs J Schammo |
| 1-0 | 38 | 1978 | Buenos Aires Olympiad | B06 Robatsch |
37. E Grant vs J Schammo |
| ½-½ | 58 | 1978 | Buenos Aires Olympiad | A10 English |
38. J Schammo vs E Georges |
 | 1-0 | 34 | 1978 | Buenos Aires Olympiad | B91 Sicilian, Najdorf, Zagreb (Fianchetto) Variation |
39. H Messing vs J Schammo |
| ½-½ | 48 | 1979 | Mitropa Cup | B43 Sicilian, Kan, 5.Nc3 |
40. F Oney vs J Schammo |
| 1-0 | 38 | 1980 | Valletta Olympiad | B42 Sicilian, Kan |
41. J Schammo vs F Stoppel |
| ½-½ | 27 | 1981 | 6th Mitropa Cup | C01 French, Exchange |
42. J Schammo vs O Borik |
| ½-½ | 81 | 1981 | 6th Mitropa Cup | B59 Sicilian, Boleslavsky Variation, 7.Nb3 |
43. S Martinovic vs J Schammo |
| 1-0 | 40 | 1981 | 6th Mitropa Cup | A07 King's Indian Attack |
44. J Schammo vs H Wirthensohn |
| 0-1 | 30 | 1981 | 6th Mitropa Cup | B83 Sicilian |
45. E Arlandi vs J Schammo |
| 1-0 | 28 | 1981 | 6th Mitropa Cup | D02 Queen's Pawn Game |
46. E Tsuboi vs J Schammo |
 | 1-0 | 24 | 1986 | Dubai Olympiad | C10 French |
47. J Schammo vs Z Rahman |
| ½-½ | 27 | 1986 | Dubai Olympiad | C17 French, Winawer, Advance |
48. J Schammo vs Kupreichik |
| 0-1 | 34 | 1995 | 11th ECC qual group 5 | E92 King's Indian |