4 games · 2020–2021 · 0 classical · 3 online
Efimenko 10 draws3 Mammadova
25.0% for Efimenko
Openings between them
| B06 | Modern Defense: Standard Defense | 1 | 100.0% |
| B08 | Pirc Defense: Classical Variation, Quiet System, Czech Defense | 1 | 0.0% |
| C00 | French Defense: King's Indian Attack | 1 | 0.0% |
| C03 | French Defense: Tarrasch Variation, Modern System | 1 | 0.0% |
All games
| Mammadova, G2387 | 0-1 | Efimenko, Maria2245 | World Blitz Women 2021 | 2021 |
| Mammadova, G2382 | 1-0 | Efimenko, Maria2245 | AZE-UKR Blitz Match 2020 | 2020 |
| Efimenko, Maria2245 | 0-1 | Mammadova, G2382 | AZE-UKR Rapid Match 2020 | 2020 |
| Efimenko, Maria2245 | 0-1 | Mammadova, G2382 | Women's Speed Chess Q2 | 2020 |