| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 51. Kasparov vs Deep Thought |
  | 1-0 | 37 | 1989 | AGS Computer Challenge | D20 Queen's Gambit Accepted |
| 52. Deep Thought vs Alburt |
| 0-1 | 40 | 1989 | 1st Harvard Cup | B02 Alekhine's Defense |
| 53. Gulko vs Deep Thought |
| 1-0 | 29 | 1989 | 1st Harvard Cup | A07 King's Indian Attack |
| 54. Deep Thought vs Dlugy |
| 1-0 | 43 | 1989 | 1st Harvard Cup | B21 Sicilian, 2.f4 and 2.d4 |
| 55. M Rohde vs Deep Thought |
| 1-0 | 42 | 1989 | 1st Harvard Cup | A09 Reti Opening |
| 56. Deep Thought vs E N Cooke |
| 1-0 | 32 | 1989 | American Open | C15 French, Winawer |
| 57. K Chubook vs Deep Thought |
| ½-½ | 55 | 1989 | American Open | B04 Alekhine's Defense, Modern |
| 58. Deep Thought vs B Izumikawa |
| 1-0 | 45 | 1989 | American Open | A34 English, Symmetrical |
| 59. J Peters vs Deep Thought |
| 0-1 | 53 | 1989 | American Open | B04 Alekhine's Defense, Modern |
| 60. Deep Thought vs BP |
| 1-0 | 23 | 1989 | 20th NACCC | C42 Petrov Defense |
| 61. Hitech vs Deep Thought |
| 0-1 | 30 | 1989 | 20th NACCC | D20 Queen's Gambit Accepted |
| 62. Deep Thought vs REBEL |
| 1-0 | 38 | 1989 | 20th NACCC | B17 Caro-Kann, Steinitz Variation |
| 63. Sun Phoenix vs Deep Thought |
| 0-1 | 56 | 1989 | 20th NACCC | A21 English |
| 64. Mephisto vs Deep Thought |
| 1-0 | 64 | 1989 | 20th NACCC | D25 Queen's Gambit Accepted |
| 65. H Pfleger vs Deep Thought |
| ½-½ | 50 | 1990 | Germany | A21 English |
| 66. D K Johansen vs Deep Thought |
| 1-0 | 64 | 1990 | Man vs Machine | A20 English |
| 67. Karpov vs Deep Thought |
| 1-0 | 65 | 1990 | Exhibition game | B12 Caro-Kann Defense |
| 68. Belle vs Deep Thought |
| 0-1 | 60 | 1990 | 21st NACCC | B22 Sicilian, Alapin |
| 69. Deep Thought vs Mephisto |
| 1-0 | 60 | 1990 | 21st NACCC | A06 Reti Opening |
| 70. Hitech vs Deep Thought |
| 1-0 | 51 | 1990 | 21st NACCC | B31 Sicilian, Rossolimo Variation |
| 71. Deep Thought vs Bebe |
| 1-0 | 42 | 1990 | 21st NACCC | A79 Benoni, Classical, 11.f3 |
| 72. Deep Thought vs Zarkov |
| 1-0 | 37 | 1990 | 21st NACCC | A36 English |
| 73. Deep Thought vs Zarkov |
| 1-0 | 57 | 1991 | ACM Albuquerque | C99 Ruy Lopez, Closed, Chigorin, 12...cd |
| 74. M-Chess vs Deep Thought |
| 0-1 | 60 | 1991 | ACM Albuquerque | E06 Catalan, Closed, 5.Nf3 |
| 75. Deep Thought vs Hitech |
| 1-0 | 55 | 1991 | ACM Albuquerque | C07 French, Tarrasch |
Kibitzing
