| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. Najdorf vs R Sanguineti |
| 1-0 | 50 | 1955 | Argentine Championship | A04 Reti Opening |
| 27. R Sanguineti vs J M Suarez |
| 0-1 | 49 | 1955 | Argentine Championship | C92 Ruy Lopez, Closed |
| 28. A Laurencena vs R Sanguineti |
| 1-0 | 29 | 1955 | Argentine Championship | C92 Ruy Lopez, Closed |
| 29. R Sanguineti vs E Reinhardt |
| 1-0 | 46 | 1955 | Argentine Championship | E40 Nimzo-Indian, 4.e3 |
| 30. C H Maderna vs R Sanguineti |
| 0-1 | 63 | 1955 | Argentine Championship | B60 Sicilian, Richter-Rauzer |
| 31. R Sanguineti vs V Palermo |
| 1-0 | 36 | 1955 | Argentine Championship | C50 Giuoco Piano |
| 32. J Behrensen vs R Sanguineti |
| ½-½ | 41 | 1955 | Argentine Championship | A07 King's Indian Attack |
| 33. R Sanguineti vs R Shocron |
| 0-1 | 61 | 1955 | Argentine Championship | A90 Dutch |
| 34. G Idigoras vs R Sanguineti |
| 0-1 | 45 | 1955 | Argentine Championship | E59 Nimzo-Indian, 4.e3, Main line |
| 35. R Sanguineti vs Eliskases |
| 1-0 | 26 | 1955 | Argentine Championship | B76 Sicilian, Dragon, Yugoslav Attack |
| 36. B Wexler vs R Sanguineti |
| ½-½ | 22 | 1955 | Argentine Championship | D27 Queen's Gambit Accepted, Classical |
| 37. R Sanguineti vs C Guimard |
| ½-½ | 27 | 1955 | Argentine Championship | A46 Queen's Pawn Game |
| 38. R A Redolfi vs R Sanguineti |
| ½-½ | 22 | 1955 | Argentine Championship | C47 Four Knights |
| 39. R Sanguineti vs J Behrensen |
| ½-½ | 41 | 1956 | Mar del Plata | A38 English, Symmetrical |
| 40. J Gondim vs R Sanguineti |
| 0-1 | 38 | 1956 | Mar del Plata | D13 Queen's Gambit Declined Slav, Exchange Variation |
| 41. R Sanguineti vs E Reinhardt |
| 0-1 | 17 | 1956 | Mar del Plata | D85 Grunfeld |
| 42. J Bolbochan vs R Sanguineti |
| 0-1 | 33 | 1956 | Mar del Plata | A80 Dutch |
| 43. R Sanguineti vs Eliskases |
| ½-½ | 49 | 1956 | Mar del Plata | D63 Queen's Gambit Declined, Orthodox Defense |
| 44. J Pelikan vs R Sanguineti |
| ½-½ | 44 | 1956 | Mar del Plata | C77 Ruy Lopez |
| 45. R Sanguineti vs C H Maderna |
| ½-½ | 46 | 1956 | Mar del Plata | A60 Benoni Defense |
| 46. V L Szentkiralyi Toth vs R Sanguineti |
| 0-1 | 54 | 1956 | Mar del Plata | D44 Queen's Gambit Declined Semi-Slav |
| 47. R Sanguineti vs R A Redolfi |
| 0-1 | 37 | 1956 | Mar del Plata | A04 Reti Opening |
| 48. Bolbochan vs R Sanguineti |
| ½-½ | 70 | 1956 | Mar del Plata | D19 Queen's Gambit Declined Slav, Dutch |
| 49. R Sanguineti vs Najdorf |
 | 1-0 | 58 | 1956 | Mar del Plata | A15 English |
| 50. R Shocron vs R Sanguineti |
| 0-1 | 51 | 1956 | Mar del Plata | E47 Nimzo-Indian, 4.e3 O-O 5.Bd3 |
Kibitzing
