Game |
| Result | Moves |
Year | Event/Locale | Opening |
1. I Muramatsu Steinhoff vs H Melao |
| ½-½ | 23 | 1991 | Sao Paulo Latin American Cup Open | D31 Queen's Gambit Declined |
2. Y Hernandez Guerrero vs I Muramatsu Steinhoff |
| 0-1 | 19 | 1991 | World Youth U26 Team Championship | B77 Sicilian, Dragon, Yugoslav Attack |
3. I Muramatsu Steinhoff vs G Kanefsck |
| 1-0 | 52 | 1991 | World Youth U26 Team Championship | D15 Queen's Gambit Declined Slav |
4. A Souza Neves vs I Muramatsu Steinhoff |
| 0-1 | 39 | 1991 | World Youth U26 Team Championship | B70 Sicilian, Dragon Variation |
5. I Muramatsu Steinhoff vs D Baudot |
| 0-1 | 33 | 1991 | World Youth U26 Team Championship | A42 Modern Defense, Averbakh System |
6. A Cajal vs I Muramatsu Steinhoff |
| 1-0 | 17 | 1991 | Sao Paulo Latin American Cup Open | B72 Sicilian, Dragon |
7. F Cavalcanti vs I Muramatsu Steinhoff |
| 0-1 | 46 | 1991 | Sao Paulo Latin American Cup Open | E86 King's Indian, Samisch, Orthodox, 7.Nge2 c6 |
8. I Muramatsu Steinhoff vs M Sorokin |
| 0-1 | 31 | 1991 | Sao Paulo Latin American Cup Open | D31 Queen's Gambit Declined |
9. G Perlino Jr vs I Muramatsu Steinhoff |
| 0-1 | 27 | 1991 | Sao Paulo Latin American Cup Open | B70 Sicilian, Dragon Variation |
10. A A Correa vs I Muramatsu Steinhoff |
| 1-0 | 33 | 1991 | Sao Paulo Latin American Cup Open | E69 King's Indian, Fianchetto, Classical Main line |
11. I Muramatsu Steinhoff vs M A Tubero |
| 1-0 | 45 | 1991 | Sao Paulo Latin American Cup Open | E88 King's Indian, Samisch, Orthodox, 7.d5 c6 |
12. C Almeida vs I Muramatsu Steinhoff |
| ½-½ | 28 | 1991 | World Youth U26 Team Championship | E60 King's Indian Defense |
13. M Zapata Ferrada vs I Muramatsu Steinhoff |
| 0-1 | 39 | 1991 | World Youth U26 Team Championship | B78 Sicilian, Dragon, Yugoslav Attack, 10.castle long |
14. I Muramatsu Steinhoff vs C E Toth |
| ½-½ | 19 | 1992 | Guarapuava Latin American Cup Open | D80 Grunfeld |
15. I Muramatsu Steinhoff vs A A Correa |
| 0-1 | 58 | 1992 | Guarapuava Latin American Cup Open | D31 Queen's Gambit Declined |
16. W Martins Madeira vs I Muramatsu Steinhoff |
| 0-1 | 68 | 1992 | Guarapuava Latin American Cup Open | B22 Sicilian, Alapin |
17. I Muramatsu Steinhoff vs L A Carvalho |
| 1-0 | 49 | 1992 | Guarapuava Latin American Cup Open | E81 King's Indian, Samisch |
18. J Mann de Toledo vs I Muramatsu Steinhoff |
| ½-½ | 25 | 1992 | Guarapuava Latin American Cup Open | B27 Sicilian |
19. M A Asfora vs I Muramatsu Steinhoff |
| 1-0 | 59 | 1992 | Guarapuava Latin American Cup Open | E87 King's Indian, Samisch, Orthodox |
20. E Matsuura vs I Muramatsu Steinhoff |
| 1-0 | 26 | 1992 | Guarapuava Latin American Cup Open | B52 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
21. I Muramatsu Steinhoff vs M Cukier |
| 1-0 | 26 | 1992 | Guarapuava Latin American Cup Open | E87 King's Indian, Samisch, Orthodox |
22. I Muramatsu Steinhoff vs G Vescovi |
| ½-½ | 68 | 1992 | Guarapuava Latin American Cup Open | A48 King's Indian |
23. J Waitzkin vs I Muramatsu Steinhoff |
 | 1-0 | 33 | 1992 | Wch U16 | A07 King's Indian Attack |
24. I Muramatsu Steinhoff vs T Oral |
| 1-0 | 50 | 1992 | Wch U16 | E71 King's Indian, Makagonov System (5.h3) |
25. I Muramatsu Steinhoff vs I B de Souza |
| 0-1 | 25 | 1992 | Guarapuava Latin American Cup Open | A70 Benoni, Classical with 7.Nf3 |