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| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. A Giaccio vs Najdorf |
| ½-½ | 51 | 1991 | Argentine Championship | B90 Sicilian, Najdorf |
| 2. A Giaccio vs B Altamirano |
| 1-0 | 24 | 1992 | COOP tt | B90 Sicilian, Najdorf |
| 3. A Giaccio vs J Rivero |
| 1-0 | 44 | 1992 | Mar del Plata op | B90 Sicilian, Najdorf |
| 4. A Giaccio vs J D Caputo |
| ½-½ | 34 | 1992 | Villa Ballester op | B90 Sicilian, Najdorf |
| 5. A Giaccio vs M Devcic |
| 1-0 | 28 | 1993 | Buenos Aires Najdorf op | B90 Sicilian, Najdorf |
| 6. A Giaccio vs H Saldano Dayer |
| 1-0 | 54 | 1995 | Buenos Aires JM ITT1 | B90 Sicilian, Najdorf |
| 7. A Giaccio vs F Quiroga |
| ½-½ | 45 | 1996 | Pico City op | B90 Sicilian, Najdorf |
| 8. A Giaccio vs C Minzer |
| 1-0 | 53 | 1998 | ARG-ch sf | B90 Sicilian, Najdorf |
| 9. A Giaccio vs J Sunye Neto |
| 1-0 | 30 | 1998 | Clarin GP Final | B90 Sicilian, Najdorf |
| 10. A Giaccio vs J F Cubas |
| 1-0 | 49 | 1998 | Cordoba Zonal | B90 Sicilian, Najdorf |
| 11. A Giaccio vs K Mekhitarian |
| 1-0 | 41 | 2003 | Internet Section 14-B | B90 Sicilian, Najdorf |
| 12. A Giaccio vs A Abreu Delgado |
| 0-1 | 54 | 2004 | Sao Paulo Communic 4th | B90 Sicilian, Najdorf |
| 13. A Giaccio vs B Ribeiro |
| 1-0 | 19 | 2004 | Sao Paulo Communic 5th | B90 Sicilian, Najdorf |
| 14. A Giaccio vs F Ribeiro |
| 1-0 | 45 | 2004 | POR-chT | B90 Sicilian, Najdorf |
| 15. A Giaccio vs E Montilla Carrillo |
| 1-0 | 27 | 2004 | Benidorm op rap 1st | B90 Sicilian, Najdorf |
| 16. A Giaccio vs F Frare |
| ½-½ | 28 | 2005 | Sao Jose de Rio Preto 4th | B90 Sicilian, Najdorf |
| 17. A Giaccio vs Y Quesada Perez |
| ½-½ | 27 | 2005 | 40th Capablanca Memorial | B90 Sicilian, Najdorf |
| 18. A Giaccio vs A Kovalyov |
| 0-1 | 61 | 2006 | Pinamar Magistral 4th | B90 Sicilian, Najdorf |
| 19. A Giaccio vs M L Nicholson |
| 0-1 | 47 | 2008 | Camara Memorial-A email | B90 Sicilian, Najdorf |
| 20. A Giaccio vs S Bogner |
| ½-½ | 45 | 2017 | 6th Lorca Open | B90 Sicilian, Najdorf |
| 21. A Giaccio vs A Dengla |
| 1-0 | 52 | 2021 | Montserrat Masters | B90 Sicilian, Najdorf |
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| page 1 of 1; 21 games |
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Kibitzing
