Mariana Marin Guevara
CRC · FIDE ID 6560016 · 20 tournament games since 2024
Standard
1488
#447 in CRC (active)
Rapid
–
Unrated
Blitz
1428
#773 in CRC (active)
Score
35%
6 W · 2 D · 12 L
Opp. avg
1558
Last 20 games
Last game
2026-07-11
Costa Rica Campeonato Nacional Impares 2026 | G15
Prep summary
- As White: 1.c4 in 86% of games (scores 50%).
- Against 1.e4: 1...c6 in 10 of 11 games (Caro-Kann Defense), scoring 25%.
Based on 20 over-the-board games (5 rapid · 3 classical). 7 with White (43%), 13 with Black (31%).
Openings as White
First move
| 1.c4 | 6 | 50% |
| 1.d4 | 1 | 0% |
Most played
| Opening | Games | Score |
|---|---|---|
| English Opening: King's English Variation, Reversed Closed Sicilian | 2 | 100% |
| English Opening: King's English Variation, Reversed Sicilian | 2 | 50% |
| English Opening: Agincourt Defense | 1 | 0% |
| English Opening: Symmetrical Variation, Botvinnik System Reversed, with Nf3 | 1 | 0% |
| Slav Defense | 1 | 0% |
Openings as Black
Against 1.e4 (11 games)
| 1...c6 Caro-Kann Defense | 10 | 25% |
| 1...c5 Sicilian Defense | 1 | 100% |
Against 1.d4 (1 game)
| 1...Nf6 Indian Defense | 1 | 50% |
Most played
| Opening | Games | Score |
|---|---|---|
| Caro-Kann Defense | 2 | 50% |
| Caro-Kann Defense: Exchange Variation | 2 | 0% |
| Caro-Kann Defense: Advance Variation | 2 | 75% |
| Caro-Kann Defense: Accelerated Panov Attack | 1 | 0% |
| Caro-Kann Defense: Exchange Variation, Rubinstein Variation | 1 | 0% |
Recent games
| Date | Opponent and event | Result |
|---|---|---|
| 2026-07-11 | Maria Regina Salazar Quiros (1603) Costa Rica Campeonato Nacional Impares 2026 | G15 · classical | L |
| 2026-07-10 | Elena Fernandez Mayorga (1644) Costa Rica Campeonato Nacional Impares 2026 | G15 · classical | L |
| 2025-12-30 | Mattias Rodriguez Gonzalez XLVI Metropolitano Torneo Internacional|Metropolitano U14 · classical | L |
| 2025-10-06 | Fatima Mendez Machado (1495) Juegos Estudiantiles Centroamericanos CODICADER U15 | Clásico Femenil | L |
| 2025-10-06 | Ariadna Lucia Matus Acevedo Juegos Estudiantiles Centroamericanos CODICADER U15 | Clásico Femenil | W |
| 2025-10-05 | Sophia Palencia (1539) Juegos Estudiantiles Centroamericanos CODICADER U15 | Clásico Femenil | W |
| 2025-10-05 | Shareth Velasquez (1478) Juegos Estudiantiles Centroamericanos CODICADER U15 | Clásico Femenil | L |
| 2025-10-05 | Camila Ximena Garcia Juarez (1622) Juegos Estudiantiles Centroamericanos CODICADER U15 | Clásico Femenil | ½ |
| 2025-10-04 | Kimberly Melissa Ventura Juarez Juegos Estudiantiles Centroamericanos CODICADER U15 | Rápido Femenil · rapid | W |
| 2025-10-04 | Sharon Velasquez Juegos Estudiantiles Centroamericanos CODICADER U15 | Rápido Femenil · rapid | L |
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.