| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. S Erdelyi vs L Laurine |
| 0-1 | 82 | 1935 | Warsaw Olympiad | D01 Richter-Veresov Attack |
| 27. Szabo vs S Erdelyi |
 | 1-0 | 39 | 1935 | Warsaw Olympiad | D11 Queen's Gambit Declined Slav |
| 28. P Bidev vs S Erdelyi |
| 0-1 | 44 | 1947 | Sofia Balkaniad | B72 Sicilian, Dragon |
| 29. S Erdelyi vs E Gereben |
| ½-½ | 20 | 1947 | Sofia Balkaniad | A20 English |
| 30. S Erdelyi vs D Ivanov |
| 1-0 | 60 | 1947 | Sofia Balkaniad | A13 English |
| 31. S Erdelyi vs R G Wade |
| 0-1 | 41 | 1949 | Reti Memorial | A91 Dutch Defense |
| 32. S Erdelyi vs C Kottnauer |
| 1-0 | 32 | 1949 | Reti Memorial | D11 Queen's Gambit Declined Slav |
| 33. E Paoli vs S Erdelyi |
| 1-0 | 51 | 1949 | Reti Memorial | B92 Sicilian, Najdorf, Opocensky Variation |
| 34. S Erdelyi vs Szabo |
| 0-1 | 33 | 1949 | Reti Memorial | D75 Neo-Grunfeld, 6.cd Nxd5, 7.O-O c5, 8.dxc5 |
| 35. L Prins vs S Erdelyi |
| ½-½ | 51 | 1949 | Reti Memorial | B50 Sicilian |
| 36. Golombek vs S Erdelyi |
| 1-0 | 53 | 1949 | Reti Memorial | D10 Queen's Gambit Declined Slav |
| 37. S Erdelyi vs J Foltys |
| ½-½ | 31 | 1949 | Reti Memorial | D22 Queen's Gambit Accepted |
| 38. S Erdelyi vs Bolbochan |
| 1-0 | 54 | 1949 | Reti Memorial | A14 English |
| 39. S Erdelyi vs O'Kelly |
| 0-1 | 50 | 1949 | Reti Memorial | E00 Queen's Pawn Game |
| 40. Pachman vs S Erdelyi |
| 1-0 | 40 | 1949 | Reti Memorial | D52 Queen's Gambit Declined |
| 41. S Erdelyi vs Rossolimo |
| 1-0 | 40 | 1949 | Reti Memorial | A45 Queen's Pawn Game |
| 42. S Erdelyi vs J Sefc |
| 0-1 | 34 | 1949 | Reti Memorial | D30 Queen's Gambit Declined |
| 43. M Ujtelky vs S Erdelyi |
| ½-½ | 36 | 1949 | Reti Memorial | B92 Sicilian, Najdorf, Opocensky Variation |
| 44. S Erdelyi vs J Platt |
| ½-½ | 49 | 1949 | Reti Memorial | D99 Grunfeld Defense, Smyslov |
| 45. Stahlberg vs S Erdelyi |
| 1-0 | 37 | 1949 | Reti Memorial | D15 Queen's Gambit Declined Slav |
| 46. I V Rohacek vs S Erdelyi |
| 0-1 | 53 | 1949 | Reti Memorial | A07 King's Indian Attack |
| 47. S Erdelyi vs K Ojanen |
| ½-½ | 44 | 1949 | Reti Memorial | D77 Neo-Grunfeld, 6.O-O |
| 48. J Szily vs S Erdelyi |
| ½-½ | 25 | 1949 | Reti Memorial | D11 Queen's Gambit Declined Slav |
| 49. E Richter vs S Erdelyi |
| 1-0 | 49 | 1949 | Reti Memorial | D11 Queen's Gambit Declined Slav |
| 50. I Balanel vs S Erdelyi |
| ½-½ | 38 | 1949 | Bucharest | D31 Queen's Gambit Declined |
Kibitzing
