| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 51. L Sieiro Gonzalez vs U Pina |
| 1-0 | 56 | 1989 | Cuban Championship | B33 Sicilian |
| 52. J Arencibia vs L Sieiro Gonzalez |
| ½-½ | 57 | 1989 | Cuban Championship | D37 Queen's Gambit Declined |
| 53. L Sieiro Gonzalez vs G Estevez Morales |
| ½-½ | 14 | 1989 | Cuban Championship | D69 Queen's Gambit Declined, Orthodox Defense, Classical, 13.de |
| 54. G Garcia Gonzalez vs L Sieiro Gonzalez |
| ½-½ | 13 | 1989 | Cuban Championship | E12 Queen's Indian |
| 55. L Sieiro Gonzalez vs P Paneque Martin |
| 0-1 | 32 | 1989 | Cuban Championship | C14 French, Classical |
| 56. A Gavilanes Rubino vs L Sieiro Gonzalez |
| 1-0 | 18 | 1989 | Cuban Championship | C11 French |
| 57. L Sieiro Gonzalez vs D Aldama Degurnay |
| 1-0 | 40 | 1989 | Cuban Championship | B43 Sicilian, Kan, 5.Nc3 |
| 58. J Espinosa vs L Sieiro Gonzalez |
| 1-0 | 37 | 1989 | Cuban Championship | A07 King's Indian Attack |
| 59. L Sieiro Gonzalez vs N Velez Betancourt |
| ½-½ | 12 | 1989 | Cuban Championship | A46 Queen's Pawn Game |
| 60. I Delgado Cespedes vs L Sieiro Gonzalez |
| ½-½ | 13 | 1989 | Cuban Championship | A04 Reti Opening |
| 61. L Sieiro Gonzalez vs B Lugo |
| ½-½ | 44 | 1989 | Capablanca Memorial-A | C47 Four Knights |
| 62. V Moskalenko vs L Sieiro Gonzalez |
| 0-1 | 39 | 1989 | Capablanca Memorial-A | D43 Queen's Gambit Declined Semi-Slav |
| 63. L Sieiro Gonzalez vs L Ortega |
| ½-½ | 17 | 1989 | Capablanca Memorial-A | B87 Sicilian, Fischer-Sozin with ...a6 and ...b5 |
| 64. J Borges Matos vs L Sieiro Gonzalez |
| 1-0 | 50 | 1989 | Capablanca Memorial-A | D63 Queen's Gambit Declined, Orthodox Defense |
| 65. L Sieiro Gonzalez vs P Velikov |
| ½-½ | 45 | 1989 | Capablanca Memorial-A | B42 Sicilian, Kan |
| 66. R Martin del Campo vs L Sieiro Gonzalez |
| ½-½ | 18 | 1989 | Capablanca Memorial-A | C07 French, Tarrasch |
| 67. L Sieiro Gonzalez vs W Arencibia Rodriguez |
| ½-½ | 12 | 1989 | Capablanca Memorial-A | C18 French, Winawer |
| 68. W Sariego Figueredo vs L Sieiro Gonzalez |
| ½-½ | 14 | 1989 | Capablanca Memorial-A | C42 Petrov Defense |
| 69. L Sieiro Gonzalez vs A Rodriguez |
| ½-½ | 15 | 1989 | Capablanca Memorial-A | C45 Scotch Game |
| 70. A Antunes vs L Sieiro Gonzalez |
| 1-0 | 43 | 1989 | Capablanca Memorial-A | A07 King's Indian Attack |
| 71. L Sieiro Gonzalez vs S Djuric |
| ½-½ | 28 | 1989 | Capablanca Memorial-A | C11 French |
| 72. L Sieiro Gonzalez vs M Andres Mendez |
| ½-½ | 15 | 1989 | Capablanca Memorial-A | B32 Sicilian |
| 73. L Sieiro Gonzalez vs W Arencibia Rodriguez |
| 1-0 | 32 | 1990 | Santa Clara | C18 French, Winawer |
| 74. L Sieiro Gonzalez vs J Ochoa |
| ½-½ | 14 | 1990 | Capablanca mem-B | B30 Sicilian |
| 75. L Sieiro Gonzalez vs A Antunes |
| 1-0 | 63 | 1990 | Santa Clara | C48 Four Knights |
Kibitzing
