| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. L Kaiev vs D Grechkin |
| ½-½ | 43 | 1940 | URS-sf | B84 Sicilian, Scheveningen |
| 27. D Grechkin vs G Kasparian |
| ½-½ | 46 | 1940 | URS-sf | A15 English |
| 28. D Grechkin vs A Konstantinopolsky |
| ½-½ | 41 | 1940 | URS-sf | E07 Catalan, Closed |
| 29. S Zhukhovitsky vs D Grechkin |
| 1-0 | 64 | 1940 | URS-sf | B80 Sicilian, Scheveningen |
| 30. I Pogrebissky vs D Grechkin |
| 0-1 | 37 | 1940 | URS-sf | A07 King's Indian Attack |
| 31. D Grechkin vs E Gerstenfeld |
| 0-1 | 43 | 1940 | URS-sf | A14 English |
| 32. D Grechkin vs A Khavin |
| 1-0 | 28 | 1940 | URS-sf | D75 Neo-Grunfeld, 6.cd Nxd5, 7.O-O c5, 8.dxc5 |
| 33. D Grechkin vs V Rauzer |
| ½-½ | 19 | 1940 | URS-sf | A49 King's Indian, Fianchetto without c4 |
| 34. V Chekhover vs D Grechkin |
 | ½-½ | 31 | 1940 | URS-sf | B80 Sicilian, Scheveningen |
| 35. D Grechkin vs M Stolberg |
| 0-1 | 41 | 1940 | URS-sf | A14 English |
| 36. D Grechkin vs Alatortsev |
| 1-0 | 51 | 1941 | Ch URS (1/2 final) | C02 French, Advance |
| 37. D Grechkin vs Bronstein |
| 0-1 | 29 | 1946 | URS-ch sf Leningrad | A04 Reti Opening |
| 38. G Ilivitsky vs D Grechkin |
 | 1-0 | 38 | 1947 | URS-ch sf Sverdlovsk | E70 King's Indian |
| 39. D Grechkin vs V Saigin |
| 0-1 | 25 | 1947 | URS-ch sf Sverdlovsk | B58 Sicilian |
| 40. D Grechkin vs A Chistiakov |
| 0-1 | 26 | 1947 | URS-ch sf Sverdlovsk | C02 French, Advance |
| 41. R Nezhmetdinov vs D Grechkin |
| 1-0 | 41 | 1948 | 8th Ch RSFSR | B32 Sicilian |
| 42. Panov vs D Grechkin |
| 1-0 | 35 | 1949 | Bolshevik Championship | B80 Sicilian, Scheveningen |
| 43. Aronin vs D Grechkin |
| 0-1 | 34 | 1949 | RSFSR Championship | D47 Queen's Gambit Declined Semi-Slav |
| 44. D Grechkin vs V Zagorovsky |
| 1-0 | 30 | 1949 | RSFSR Championship | C74 Ruy Lopez, Modern Steinitz Defense |
| 45. N Aratovsky vs D Grechkin |
| 1-0 | 39 | 1949 | RSFSR Championship | D19 Queen's Gambit Declined Slav, Dutch |
| 46. N Novotelnov vs D Grechkin |
| 0-1 | 31 | 1949 | RSFSR Championship | E70 King's Indian |
| 47. D Grechkin vs A Pirtskhalava |
| 1-0 | 68 | 1949 | URS-ch sf Tbilisi+ | B84 Sicilian, Scheveningen |
| 48. D Grechkin vs A Ebralidze |
| ½-½ | 17 | 1949 | URS-ch sf Tbilisi | B18 Caro-Kann, Classical |
| 49. I Pogrebissky vs D Grechkin |
| 0-1 | 41 | 1949 | URS-ch sf Tbilisi | D78 Neo-Grunfeld, 6.O-O c6 |
| 50. K Klaman vs D Grechkin |
| 1-0 | 42 | 1949 | URS-ch sf Tbilisi | D02 Queen's Pawn Game |
Kibitzing
