Mariana Nara Santana Da Costa
BRA · FIDE ID 22779884 · 26 tournament games since 2023
Standard
1955
#452 in BRA (active)
Rapid
1905
#956 in BRA (active)
Blitz
1925
#613 in BRA (active)
Score
56%
13 W · 3 D · 10 L
Opp. avg
1904
Last 26 games
Last game
2026-08-22
Pan American Amateur Chess Championship 2026 | Women | U2000
Prep summary
- As White: 1.d4 in 100% of games (scores 50%).
- Against 1.e4: 1...c6 in 2 of 4 games (Caro-Kann Defense), scoring 50%.
- Against 1.d4: 1...d5 in 7 of 7 games (Queen's Pawn Game), scoring 71%.
- By opponent strength: 23% against higher-rated players, 89% against lower-rated.
Based on 26 over-the-board games (11 blitz · 6 classical · 6 rapid). 13 with White (50%), 13 with Black (62%).
Openings as White
First move
| 1.d4 | 13 | 50% |
Most played
| Opening | Games | Score |
|---|---|---|
| Trompowsky Attack | 2 | 50% |
| Grünfeld Defense: Brinckmann Attack, Grünfeld Gambit | 1 | 50% |
| Queen's Gambit Declined: Orthodox Defense, Main Line | 1 | 100% |
| Semi-Slav Defense: Anti-Moscow Gambit | 1 | 0% |
| King's Indian Defense: Averbakh Variation, Nc6 Defense | 1 | 100% |
Openings as Black
Against 1.e4 (4 games)
| 1...c6 Caro-Kann Defense | 2 | 50% |
| 1...c5 Sicilian Defense | 1 | 100% |
| 1...e5 King's Pawn Game | 1 | 0% |
Against 1.d4 (7 games)
| 1...d5 Queen's Pawn Game | 7 | 71% |
Most played
| Opening | Games | Score |
|---|---|---|
| Queen's Gambit Declined | 2 | 75% |
| Queen's Pawn Game: Accelerated London System | 2 | 50% |
| Slav Defense: Exchange Variation | 2 | 100% |
| Sicilian Defense: Kupreichik Variation | 1 | 100% |
| Caro-Kann Defense: Classical Variation, Spassky Variation | 1 | 0% |
Recent games
| Date | Opponent and event | Result |
|---|---|---|
| 2026-08-22 | Luana Felipe Simoncini (1859) Pan American Amateur Chess Championship 2026 | Women | U2000 · classical | ½ |
| 2026-08-22 | Flora Ferreira Sarmento (1630) Pan American Amateur Chess Championship 2026 | Women | U2000 · classical | W |
| 2026-08-22 | Fernanda Cabreira Ramos (1663) Pan American Amateur Chess Championship 2026 | Women | U2000 · classical | W |
| 2026-08-22 | Lethicia Soethe Brand (1828) Pan American Amateur Chess Championship 2026 | Women | U2000 · classical | W |
| 2026-06-28 | Jose Cubas (2424) X TORNEIO INTERNACIONAL DE XADREZ SESC CAIOBÁ - STANDARD · classical | ½ |
| 2026-03-15 | Aliett Valdes Boza (2060) Queens' American Online Blitz Qualification 2026 · blitz | L |
| 2026-03-15 | Amanda Maria Muniz Guevara (2147) Queens' American Online Blitz Qualification 2026 · blitz | W |
| 2026-03-15 | Melissa Rodriguez Dominguez (2104) Queens' American Online Blitz Qualification 2026 · blitz | L |
| 2026-03-15 | Heidi Paola Bolanos Garcia (1590) Queens' American Online Blitz Qualification 2026 · blitz | W |
| 2026-03-15 | Stefanny Santillan Vareles (1788) Queens' American Online Blitz Qualification 2026 · blitz | W |
Data: FIDE rating list (October 2026 list; national ranks count active players) and tournament games broadcast on Lichess since 2020 (open data, CC0). Results are matched to FIDE players by name or FIDE ID and may be incomplete. This page shows public chess results only. Is this you and you want the page removed? Email chessmoose1@gmail.com and we remove it.