\documentclass{beamer}
\setbeamertemplate{navigation symbols}{}  

\begin{document}
\begin{frame}{Tres en raya}

    {\Huge
    \begin{center}
    \begin{tabular}{c|c|c}
    O & X & X \\ \hline
    X & O & O \\ \hline
    X & O & X
    \end{tabular}
    \end{center}
    }

\end{frame}
\end{document}

