| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 126. K Mueller vs L Vogt |
| ½-½ | 38 | 1977 | East German Championship | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 127. F Baumbach vs K Mueller |
| 1-0 | 41 | 1977 | East German Championship | E80 King's Indian, Samisch Variation |
| 128. K Mueller vs G Braun |
| 1-0 | 47 | 1977 | East German Championship | C41 Philidor Defense |
| 129. M Schurade vs K Mueller |
| 1-0 | 31 | 1977 | East German Championship | B06 Robatsch |
| 130. R Postler vs K Mueller |
| ½-½ | 11 | 1977 | East German Championship | B33 Sicilian |
| 131. K Mueller vs Uhlmann |
| 0-1 | 47 | 1981 | East German Championship | C15 French, Winawer |
| 132. K Mueller vs Knaak |
| 0-1 | 46 | 1981 | East German Championship | C15 French, Winawer |
| 133. L Espig vs K Mueller |
| 1-0 | 40 | 1981 | East German Championship | C91 Ruy Lopez, Closed |
| 134. K Mueller vs T Casper |
| ½-½ | 32 | 1981 | East German Championship | C15 French, Winawer |
| 135. K Mueller vs H Gruenberg |
| ½-½ | 49 | 1981 | East German Championship | B67 Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 8...Bd7 |
| 136. R Tischbierek vs K Mueller |
| 1-0 | 46 | 1981 | East German Championship | A48 King's Indian |
| 137. K Mueller vs U Boensch |
| 1-0 | 49 | 1981 | East German Championship | A43 Old Benoni |
| 138. H Rossmann vs K Mueller |
| 1-0 | 38 | 1981 | East German Championship | B06 Robatsch |
| 139. T Paehtz Sr vs K Mueller |
| 0-1 | 44 | 1981 | East German Championship | A36 English |
| 140. K Mueller vs J Pachow |
| 1-0 | 25 | 1981 | East German Championship | B77 Sicilian, Dragon, Yugoslav Attack |
| 141. G Gauglitz vs K Mueller |
| 1-0 | 42 | 1981 | East German Championship | E60 King's Indian Defense |
| 142. P Enders vs K Mueller |
 | 0-1 | 60 | 1981 | East German Championship | B06 Robatsch |
| 143. W Heinig vs K Mueller |
| 1-0 | 39 | 1981 | East German Championship | D02 Queen's Pawn Game |
| 144. K Mueller vs H Huth |
| 1-0 | 30 | 2004 | Brandenburg op Seniors 13th | B32 Sicilian |
| 145. K Mueller vs H Thieme |
| 1-0 | 27 | 2004 | Brandenburg-ch Seniors 12th | B80 Sicilian, Scheveningen |
Kibitzing
