| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 251. A Goehler vs M Heintze |
| ½-½ | 24 | 1986 | East German Championship (Women) | D51 Queen's Gambit Declined |
| 252. M Heintze vs S Wolf |
| 1-0 | 80 | 1986 | East German Championship (Women) | B00 Uncommon King's Pawn Opening |
| 253. C Prussas vs M Heintze |
| 0-1 | 28 | 1986 | East German Championship (Women) | B07 Pirc |
| 254. M Heintze vs A Westland |
| 1-0 | 42 | 1986 | East German Championship (Women) | C77 Ruy Lopez |
| 255. A Wagner-Michel vs M Heintze |
| ½-½ | 26 | 1986 | East German Championship (Women) | C49 Four Knights |
| 256. M Heintze vs A Goehler |
| ½-½ | 22 | 1987 | East German Championship (Women) | B93 Sicilian, Najdorf, 6.f4 |
| 257. I Mai vs M Heintze |
| ½-½ | 49 | 1987 | East German Championship (Women) | E44 Nimzo-Indian, Fischer Variation, 5.Ne2 |
| 258. M Heintze vs G Heinatz |
| 1-0 | 21 | 1987 | East German Championship (Women) | B40 Sicilian |
| 259. H Kube vs M Heintze |
| 0-1 | 29 | 1987 | East German Championship (Women) | A45 Queen's Pawn Game |
| 260. K Timme vs M Heintze |
| ½-½ | 29 | 1987 | East German Championship (Women) | B07 Pirc |
| 261. M Heintze vs A Wagner-Michel |
| ½-½ | 33 | 1987 | East German Championship (Women) | B89 Sicilian |
| 262. A Amelang vs M Heintze |
| ½-½ | 61 | 1987 | East German Championship (Women) | A02 Bird's Opening |
| 263. M Heintze vs K Kunze |
| 1-0 | 31 | 1987 | East German Championship (Women) | C43 Petrov, Modern Attack |
| 264. P Schulz vs M Heintze |
| 1-0 | 41 | 1987 | East German Championship (Women) | B63 Sicilian, Richter-Rauzer Attack |
| 265. M Heintze vs C Jahn |
| ½-½ | 20 | 1987 | East German Championship (Women) | B43 Sicilian, Kan, 5.Nc3 |
| 266. K Daemering vs M Heintze |
| 0-1 | 28 | 1987 | East German Championship (Women) | C28 Vienna Game |
| 267. M Heintze vs I Starck |
| ½-½ | 26 | 1987 | East German Championship (Women) | B16 Caro-Kann, Bronstein-Larsen Variation |
| 268. M Heintze vs J Ramseier |
| 1-0 | 57 | 1987 | East German Championship (Women) | B43 Sicilian, Kan, 5.Nc3 |
| 269. M Heintze vs M Juncu |
| ½-½ | 27 | 1987 | Sochi (Women) | B42 Sicilian, Kan |
| 270. S Maksimovic vs M Heintze |
| ½-½ | 101 | 1987 | Sochi (Women) | D69 Queen's Gambit Declined, Orthodox Defense, Classical, 13.de |
| 271. I Mai vs M Heintze |
| 1-0 | 61 | 1988 | East German Championship (Women) | E38 Nimzo-Indian, Classical, 4...c5 |
| 272. K Daemering vs M Heintze |
| 0-1 | 74 | 1988 | East German Championship (Women) | A06 Reti Opening |
| 273. M Heintze vs S Wolf |
| ½-½ | 25 | 1988 | East German Championship (Women) | B00 Uncommon King's Pawn Opening |
| 274. G Seils vs M Heintze |
| 0-1 | 22 | 1988 | East German Championship (Women) | C45 Scotch Game |
| 275. M Heintze vs A Wagner-Michel |
| 0-1 | 40 | 1988 | East German Championship (Women) | B45 Sicilian, Taimanov |
Kibitzing
