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See it for yourselfAbout this chess game
This chess game between Gerardo Herrera Retana (1857) and Mario Andres Fernandez Sanchez (2025) was played at Campeonato Nacional Absoluto de Costa Rica in 2025 and finished 0-1. The opening was the Grünfeld Defense: Flohr Defense (D94).
You can replay the full game move by move on the interactive board above, or open it on the CipherChess analysis board to study every move with the Stockfish engine.
Looking for more Gerardo Herrera Retana games or Mario Andres Fernandez Sanchez games? This Gerardo Herrera Retana vs Mario Andres Fernandez Sanchez encounter is one of millions of chess games indexed in the CipherChess mega database. Browse both players' full records, the openings they play most, and head-to-head results, then load any game onto the board to prepare your own lines against the Grünfeld Defense: Flohr Defense.
Frequently asked questions
Who won Gerardo Herrera Retana vs Mario Andres Fernandez Sanchez?
Gerardo Herrera Retana vs Mario Andres Fernandez Sanchez (2025) finished 0-1, a win for Mario Andres Fernandez Sanchez.
What opening was played in Gerardo Herrera Retana vs Mario Andres Fernandez Sanchez?
The game opened with the Grünfeld Defense: Flohr Defense (ECO D94).
Can I replay this chess game move by move?
Yes. Use the interactive board on this page to step through every move of Gerardo Herrera Retana vs Mario Andres Fernandez Sanchez, or open it on the CipherChess analysis board to review it with the Stockfish engine.