| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. V Mikenas vs M Czerniak |
| 1-0 | 33 | 1939 | Buenos Aires Olympiad Final-A | A40 Queen's Pawn Game |
| 27. M Czerniak vs K Opocensky |
| 1-0 | 54 | 1939 | Buenos Aires Olympiad Final-A | B13 Caro-Kann, Exchange |
| 28. Petrov vs M Czerniak |
| 1-0 | 55 | 1939 | Buenos Aires Olympiad Final-A | A31 English, Symmetrical, Benoni Formation |
| 29. M Czerniak vs Alekhine |
  | 0-1 | 50 | 1939 | Buenos Aires Olympiad Final-A | A22 English |
| 30. Graf-Stevenson vs M Czerniak |
| 0-1 | 50 | 1939 | Buenos Aires | A49 King's Indian, Fianchetto without c4 |
| 31. M Czerniak vs J Gerschman |
| 1-0 | 37 | 1939 | Buenos Aires | C68 Ruy Lopez, Exchange |
| 32. R Grau vs M Czerniak |
| ½-½ | 41 | 1939 | Buenos Aires | A56 Benoni Defense |
| 33. M Czerniak vs F Benko |
| 1-0 | 48 | 1939 | Buenos Aires | A45 Queen's Pawn Game |
| 34. Najdorf vs M Czerniak |
| 1-0 | 79 | 1939 | Buenos Aires | A51 Budapest Gambit |
| 35. M Czerniak vs C Guimard |
| 1-0 | 74 | 1939 | Buenos Aires | A45 Queen's Pawn Game |
| 36. Stahlberg vs M Czerniak |
| 0-1 | 43 | 1939 | Buenos Aires | A09 Reti Opening |
| 37. M Czerniak vs M Luckis |
| 1-0 | 25 | 1939 | Buenos Aires | A19 English, Mikenas-Carls, Sicilian Variation |
| 38. L Palau vs M Czerniak |
| 1-0 | 43 | 1939 | Buenos Aires | A48 King's Indian |
| 39. M Czerniak vs P Frydman |
| ½-½ | 41 | 1939 | Buenos Aires | A13 English |
| 40. Keres vs M Czerniak |
| 1-0 | 41 | 1939 | Buenos Aires | B13 Caro-Kann, Exchange |
| 41. M Czerniak vs P Frydman |
| 0-1 | 51 | 1940 | Buenos Aires | D55 Queen's Gambit Declined |
| 42. J Bolbochan vs M Czerniak |
| 1-0 | 45 | 1940 | ch19 Mayor | C05 French, Tarrasch |
| 43. M Czerniak vs L Marini |
| 0-1 | 44 | 1940 | ch19 Mayor | C13 French |
| 44. A Gromer vs M Czerniak |
| 0-1 | 52 | 1940 | ch19 Mayor | C05 French, Tarrasch |
| 45. M Czerniak vs J Traian Iliesco |
| 1-0 | 43 | 1940 | Buenos Aires | E85 King's Indian, Samisch, Orthodox Variation |
| 46. I Raud vs M Czerniak |
| ½-½ | 29 | 1940 | Buenos Aires | D15 Queen's Gambit Declined Slav |
| 47. M Czerniak vs C Guimard |
| 0-1 | 31 | 1940 | ch19 Mayor | B23 Sicilian, Closed |
| 48. M Czerniak vs F Sulik |
| 0-1 | 64 | 1940 | Buenos Aires | D00 Queen's Pawn Game |
| 49. M Czerniak vs P Frydman |
| 1-0 | 41 | 1941 | Buenos Aires Circulo | C18 French, Winawer |
| 50. M Czerniak vs Najdorf |
| 0-1 | 70 | 1941 | Buenos Aires Circulo | C41 Philidor Defense |
Kibitzing
