| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. M Wiedenkeller vs N Kirov |
| 1-0 | 42 | 1982 | Politiken Cup | B23 Sicilian, Closed |
| 27. L Spassov vs M Wiedenkeller |
| ½-½ | 80 | 1982 | Politiken Cup | E12 Queen's Indian |
| 28. M Wiedenkeller vs N Davies |
| 0-1 | 56 | 1982 | Politiken Cup | B06 Robatsch |
| 29. B Rind vs M Wiedenkeller |
| 0-1 | 23 | 1982 | Politiken Cup | E19 Queen's Indian, Old Main line, 9.Qxc3 |
| 30. Westerinen vs M Wiedenkeller |
| 1-0 | 26 | 1982 | Politiken Cup | C04 French, Tarrasch, Guimard Main line |
| 31. R Bellin vs M Wiedenkeller |
| 0-1 | 37 | 1982 | Politiken Cup | C04 French, Tarrasch, Guimard Main line |
| 32. M Wiedenkeller vs P Gallmeyer |
| 1-0 | 31 | 1982 | Politiken Cup | C77 Ruy Lopez |
| 33. M Wiedenkeller vs Hjartarson |
| ½-½ | 12 | 1982 | Politiken Cup | A07 King's Indian Attack |
| 34. H Nishimura vs M Wiedenkeller |
 | 0-1 | 12 | 1982 | World Junior Championship | C02 French, Advance |
| 35. G Milos vs M Wiedenkeller |
| 1-0 | 42 | 1982 | World Junior Championship | A75 Benoni, Classical with ...a6 and 10...Bg4 |
| 36. M Wiedenkeller vs M Ebeling |
| ½-½ | 27 | 1982 | World Junior Championship | C77 Ruy Lopez |
| 37. R Bator vs M Wiedenkeller |
| 0-1 | 29 | 1982 | World Junior Championship | C01 French, Exchange |
| 38. M Wiedenkeller vs L Winants |
| ½-½ | 74 | 1982 | World Junior Championship | A07 King's Indian Attack |
| 39. M Wiedenkeller vs J Norgaard |
| 1-0 | 42 | 1982 | World Junior Championship | A07 King's Indian Attack |
| 40. J Gil Capape vs M Wiedenkeller |
| 0-1 | 42 | 1982 | World Junior Championship | A61 Benoni |
| 41. M Wiedenkeller vs N Murshed |
| 1-0 | 39 | 1982 | World Junior Championship | A07 King's Indian Attack |
| 42. A Sokolov vs M Wiedenkeller |
| 1-0 | 24 | 1982 | World Junior Championship | C80 Ruy Lopez, Open |
| 43. M Wiedenkeller vs S Luce |
| 0-1 | 47 | 1982 | World Junior Championship | C03 French, Tarrasch |
| 44. Short vs M Wiedenkeller |
| 1-0 | 48 | 1982 | World Junior Championship | C77 Ruy Lopez |
| 45. M Wiedenkeller vs D Barbulescu |
| 1-0 | 46 | 1982 | World Junior Championship | A07 King's Indian Attack |
| 46. Hjartarson vs M Wiedenkeller |
| 1-0 | 52 | 1982 | World Junior Championship | C04 French, Tarrasch, Guimard Main line |
| 47. S Wagman vs M Wiedenkeller |
| ½-½ | 61 | 1982 | Reggio Emilia 1982/83 | C55 Two Knights Defense |
| 48. M Wiedenkeller vs Lengyel |
| 0-1 | 34 | 1982 | Reggio Emilia 1982/83 | C91 Ruy Lopez, Closed |
| 49. V Anceschi vs M Wiedenkeller |
| 0-1 | 68 | 1982 | Reggio Emilia 1982/83 | C28 Vienna Game |
| 50. M Wiedenkeller vs N Gaprindashvili |
| ½-½ | 50 | 1982 | Reggio Emilia 1982/83 | A07 King's Indian Attack |
Kibitzing
