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See it for yourselfAbout this chess game
This chess game between Mauro de los Reyes (1849) and Gaston Onetto (1769) was played at 8. Montevideo Open 2025 in 2025 and finished 1-0. The opening was the Italian Game: Two Knights Defense, Polerio Defense (C58).
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 Mauro de los Reyes games or Gaston Onetto games? This Mauro de los Reyes vs Gaston Onetto 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 Italian Game: Two Knights Defense, Polerio Defense.
Frequently asked questions
Who won Mauro de los Reyes vs Gaston Onetto?
Mauro de los Reyes vs Gaston Onetto (2025) finished 1-0, a win for Mauro de los Reyes.
What opening was played in Mauro de los Reyes vs Gaston Onetto?
The game opened with the Italian Game: Two Knights Defense, Polerio Defense (ECO C58).
Can I replay this chess game move by move?
Yes. Use the interactive board on this page to step through every move of Mauro de los Reyes vs Gaston Onetto, or open it on the CipherChess analysis board to review it with the Stockfish engine.