| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. C Silva Sanchez vs A Iglesias |
| 1-0 | 40 | 1970 | Pan American | C10 French |
| 27. P Ramirez vs C Silva Sanchez |
| 0-1 | 29 | 1970 | Pan American | C86 Ruy Lopez, Worrall Attack |
| 28. C Silva Sanchez vs J S Rodriguez |
| ½-½ | 107 | 1970 | Pan American | C41 Philidor Defense |
| 29. C Silva Sanchez vs O Rodriguez Vargas |
| 0-1 | 41 | 1970 | Pan American | C78 Ruy Lopez |
| 30. C Silva Sanchez vs T Yepez |
| ½-½ | 16 | 1970 | Pan American | C85 Ruy Lopez, Exchange Variation Doubly Deferred (DERLD) |
| 31. E Cobo Arteaga vs C Silva Sanchez |
| 1-0 | 33 | 1970 | Pan American | A00 Uncommon Opening |
| 32. C Silva Sanchez vs W Hook |
 | 0-1 | 29 | 1970 | Pan American | C03 French, Tarrasch |
| 33. S Li Chen vs C Silva Sanchez |
| 0-1 | 31 | 1970 | Pan American | A20 English |
| 34. S Garcia Martinez vs C Silva Sanchez |
| ½-½ | 22 | 1970 | Pan American | A56 Benoni Defense |
| 35. M Moraza vs C Silva Sanchez |
| ½-½ | 57 | 1970 | Pan American | C98 Ruy Lopez, Closed, Chigorin |
| 36. C Silva Sanchez vs J Rubinetti |
| 1-0 | 67 | 1971 | ARG-CHI | C77 Ruy Lopez |
| 37. J Rubinetti vs C Silva Sanchez |
| ½-½ | 53 | 1971 | ARG-CHI | B42 Sicilian, Kan |
| 38. Quinteros vs C Silva Sanchez |
| 1-0 | 45 | 1971 | 1st Pan American Team Championship | A15 English |
| 39. F Alves vs C Silva Sanchez |
| 0-1 | 59 | 1971 | 1st Pan American Team Championship | B44 Sicilian |
| 40. C Silva Sanchez vs J Rodriguez Cordoba |
| ½-½ | 33 | 1971 | 1st Pan American Team Championship | E94 King's Indian, Orthodox |
| 41. C Silva Sanchez vs N Elenberg |
| 1-0 | 62 | 1971 | 1st Pan American Team Championship | B06 Robatsch |
| 42. C Silva Sanchez vs I Mendivil |
| 1-0 | 57 | 1971 | 1st Pan American Team Championship | C91 Ruy Lopez, Closed |
| 43. D Godoy vs C Silva Sanchez |
| ½-½ | 42 | 1972 | La Serena | B40 Sicilian |
| 44. P H Donoso Velasco vs C Silva Sanchez |
| 0-1 | 23 | 1972 | La Serena | B42 Sicilian, Kan |
| 45. C Silva Sanchez vs H Rossetto |
| 1-0 | 45 | 1972 | La Serena | D70 Neo-Grunfeld Defense |
| 46. C Silva Sanchez vs Pilnik |
| 0-1 | 39 | 1972 | La Serena | D25 Queen's Gambit Accepted |
| 47. C Silva Sanchez vs H Garcia |
| ½-½ | 20 | 1972 | La Serena | B90 Sicilian, Najdorf |
| 48. C Silva Sanchez vs W Ader Hausman |
| 1-0 | 34 | 1972 | La Serena | B75 Sicilian, Dragon, Yugoslav Attack |
| 49. C Jauregui vs C Silva Sanchez |
| 1-0 | 69 | 1972 | La Serena | A28 English |
| 50. J Belmonte Schwarzbaum vs C Silva Sanchez |
| 1-0 | 41 | 1972 | La Serena | B82 Sicilian, Scheveningen |
Kibitzing
