| page 1 of 1; 17 games |
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| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Leonhardt vs Spielmann |
 | 1-0 | 32 |
1904 |
Sheveningen | C01 French, Exchange |
| 2. Leonhardt vs Burn |
| 1-0 | 35 |
1905 |
Ostend | C11 French |
| 3. Leonhardt vs Alapin |
| 1-0 | 59 |
1905 |
Ostend | C14 French, Classical |
| 4. Leonhardt vs Marshall |
| 0-1 | 33 |
1905 |
Ostend | C11 French |
| 5. Leonhardt vs Burn |
 | 0-1 | 34 |
1905 |
Barmen Masters A, GER | C11 French |
| 6. Leonhardt vs Maroczy |
| ½-½ | 26 |
1908 |
Vienna | C01 French, Exchange |
| 7. Leonhardt vs E Cohn |
| 0-1 | 55 |
1908 |
Vienna | C10 French |
| 8. Leonhardt vs Swiderski |
| 0-1 | 43 |
1908 |
Vienna | C11 French |
| 9. Leonhardt vs W John |
| 0-1 | 64 |
1910 |
DSB-17.Kongress | C12 French, McCutcheon |
| 10. Leonhardt vs Spielmann |
 | 1-0 | 31 |
1910 |
1, Hamburg | C14 French, Classical |
| 11. Leonhardt vs Marshall |
 | 1-0 | 49 |
1911 |
Hamburg | C14 French, Classical |
| 12. Leonhardt vs Teichmann |
| ½-½ | 44 |
1912 |
San | C01 French, Exchange |
| 13. Leonhardt vs Spielmann |
| ½-½ | 51 |
1912 |
20, San Sebastian | C01 French, Exchange |
| 14. Leonhardt vs Tarrasch |
 | ½-½ | 57 |
1920 |
Berlin | C12 French, McCutcheon |
| 15. Leonhardt vs Spielmann |
| 0-1 | 52 |
1927 |
25. DSB Kongress | C14 French, Classical |
| 16. Leonhardt vs Samisch |
| ½-½ | 30 |
1928 |
It BSG | C11 French |
| 17. Leonhardt vs Nimzowitsch |
 | 0-1 | 46 |
1928 |
Berlin | C01 French, Exchange |
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Secrets of Opening Surprises
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