| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 76. I J Markovic vs S Semkov |
| 0-1 | 29 | 1986 | Partizan Belgrade | B22 Sicilian, Alapin |
| 77. Kholmov vs S Semkov |
| 1-0 | 52 | 1987 | BUL | B47 Sicilian, Taimanov (Bastrikov) Variation |
| 78. S Semkov vs A Atanasijadis |
| ½-½ | 29 | 1987 | Vrnjacka Banja | A49 King's Indian, Fianchetto without c4 |
| 79. P Lukacs vs S Semkov |
| 0-1 | 34 | 1987 | Vrnjacka Banja | D31 Queen's Gambit Declined |
| 80. S Semkov vs G Miralles |
| ½-½ | 40 | 1987 | Vrnjacka Banja | E43 Nimzo-Indian, Fischer Variation |
| 81. M Knezevic vs S Semkov |
| ½-½ | 22 | 1987 | Vrnjacka Banja | A46 Queen's Pawn Game |
| 82. S Semkov vs Z Nikolic |
| 0-1 | 44 | 1987 | Vrnjacka Banja | A41 Queen's Pawn Game (with ...d6) |
| 83. N Ristic vs S Semkov |
| 0-1 | 44 | 1987 | Vrnjacka Banja | D02 Queen's Pawn Game |
| 84. S Semkov vs M Drasko |
| 1-0 | 34 | 1987 | Vrnjacka Banja | E58 Nimzo-Indian, 4.e3, Main line with 8...Bxc3 |
| 85. D Rajkovic vs S Semkov |
| 0-1 | 32 | 1987 | Vrnjacka Banja | D31 Queen's Gambit Declined |
| 86. O Renet vs S Semkov |
| 0-1 | 70 | 1987 | Vrnjacka Banja | D20 Queen's Gambit Accepted |
| 87. S Semkov vs A Strikovic |
| 1-0 | 31 | 1987 | Vrnjacka Banja | A69 Benoni, Four Pawns Attack, Main line |
| 88. S Semkov vs B Miljanic |
| ½-½ | 33 | 1987 | Vrnjacka Banja | D34 Queen's Gambit Declined, Tarrasch |
| 89. S Maksimovic vs S Semkov |
| 0-1 | 44 | 1987 | Vrnjacka Banja | D00 Queen's Pawn Game |
| 90. Bareev vs S Semkov |
| 1-0 | 40 | 1987 | Vrnjacka Banja | D21 Queen's Gambit Accepted |
| 91. J Lechtynsky vs S Semkov |
| ½-½ | 53 | 1987 | Vrnjacka Banja | D45 Queen's Gambit Declined Semi-Slav |
| 92. S Semkov vs D M Ilic |
| ½-½ | 44 | 1987 | Vrnjacka Banja | A57 Benko Gambit |
| 93. E Ermenkov vs S Semkov |
| 1-0 | 47 | 1987 | Bulgarian Championship | B31 Sicilian, Rossolimo Variation |
| 94. S Semkov vs P Peev |
| 1-0 | 60 | 1987 | Bulgarian Championship | A52 Budapest Gambit |
| 95. I Janakiev vs S Semkov |
| 0-1 | 42 | 1987 | Bulgarian Championship | E20 Nimzo-Indian |
| 96. S Semkov vs L Piasetski |
| 0-1 | 34 | 1988 | Saint John Open I | B06 Robatsch |
| 97. S Semkov vs Geller |
 | 1-0 | 53 | 1988 | Plovdiv | D31 Queen's Gambit Declined |
| 98. S Semkov vs P Peev |
| 1-0 | 42 | 1988 | Plovdiv | E76 King's Indian, Four Pawns Attack |
| 99. V Lukov vs S Semkov |
| 0-1 | 32 | 1988 | Plovdiv | D30 Queen's Gambit Declined |
| 100. S Semkov vs E Grivas |
| 1-0 | 34 | 1988 | Plovdiv | A87 Dutch, Leningrad, Main Variation |
Kibitzing
