| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 26. Illescas-Cordoba vs I Morovic |
| 0-1 | 26 |
1987 |
Santa | C07 French, Tarrasch |
| 27. Illescas-Cordoba vs Mompo |
| 1-0 | 31 |
1987 |
Sevilla | B25 Sicilian, Closed |
| 28. Zsuzsa Polgar vs Illescas-Cordoba |
 | 0-1 | 24 |
1987 |
ESP | A43 Old Benoni |
| 29. Illescas-Cordoba vs A Kapetanovic |
| 1-0 | 28 |
1987 |
It New York (USA) | B83 Sicilian |
| 30. D Barua vs Illescas-Cordoba |
| 1-0 | 41 |
1987 |
New York op | B23 Sicilian, Closed |
| 31. Illescas-Cordoba vs J Garcia |
| 1-0 | 48 |
1987 |
Santa | B08 Pirc, Classical |
| 32. Illescas-Cordoba vs J Fernandez |
| 1-0 | 27 |
1987 |
Santa | B05 Alekhine's Defense, Modern |
| 33. Illescas-Cordoba vs Ulf Andersson |
| ½-½ | 40 |
1987 |
It, Bilbao (Spain) | B81 Sicilian, Scheveningen, Keres Attack |
| 34. R Kuijf vs Illescas-Cordoba |
| ½-½ | 37 |
1987 |
Sevilla | B47 Sicilian, Taimanov (Bastrikov) Variation |
| 35. J S Neto vs Illescas-Cordoba |
| 1-0 | 54 |
1987 |
Santa | A19 English, Mikenas-Carls, Sicilian Variation |
| 36. Illescas-Cordoba vs T Taylor |
| ½-½ | 43 |
1987 |
New York op | A45 Queen's Pawn Game |
| 37. M Rivas-Pastor vs Illescas-Cordoba |
| ½-½ | 13 |
1987 |
Santa Catalina USA | A56 Benoni Defense |
| 38. Illescas-Cordoba vs J Fernandez Garcia |
| 1-0 | 26 |
1987 |
Las Palmas | C35 King's Gambit Accepted, Cunningham |
| 39. Illescas-Cordoba vs Ljubojevic |
| 0-1 | 38 |
1987 |
05 Bilbao | B73 Sicilian, Dragon, Classical |
| 40. Illescas-Cordoba vs V Bach |
| 1-0 | 30 |
1987 |
ESP | B84 Sicilian, Scheveningen |
| 41. F J Sanchez Guirado vs Illescas-Cordoba |
| 1-0 | 32 |
1987 |
Ch ESP | D42 Queen's Gambit Declined, Semi-Tarrasch, 7.Bd3 |
| 42. Illescas-Cordoba vs D Roiz Baztan |
| 1-0 | 25 |
1987 |
Monzon | B93 Sicilian, Najdorf, 6.f4 |
| 43. Bisguier vs Illescas-Cordoba |
| ½-½ | 41 |
1987 |
It (open) | A56 Benoni Defense |
| 44. Illescas-Cordoba vs Smyslov |
| ½-½ | 48 |
1987 |
Sevilla | C36 King's Gambit Accepted, Abbazia Defense |
| 45. Illescas-Cordoba vs J M De La Villa Garcia |
| ½-½ | 27 |
1987 |
USA | B21 Sicilian, 2.f4 and 2.d4 |
| 46. Harberer vs Illescas-Cordoba |
| 1-0 | 28 |
1987 |
It Linares (ESP) | A71 Benoni, Classical, 8.Bg5 |
| 47. J Armas vs Illescas-Cordoba |
| 0-1 | 20 |
1987 |
USA | A65 Benoni, 6.e4 |
| 48. J M Bellon Lopez vs Illescas-Cordoba |
| ½-½ | 21 |
1987 |
Santa | C15 French, Winawer |
| 49. Illescas-Cordoba vs G Fernandez |
| 0-1 | 41 |
1987 |
Bilbao | A16 English |
| 50. Illescas-Cordoba vs A Domont |
| 1-0 | 34 |
1987 |
It Sevilla (ESP) | B33 Sicilian |
