\begin{frame}
    \frametitle{\problemtitle}
    \begin{itemize}
        \item<+-> \textbf{Problem:} Win tic-tac-toe on a large ($59\times42$) grid when going first.
        \item<+-> Play the first move somewhere with enough space around it, for example near the center.
        \item<+-> After the judge's first move, choose a direction such that the adjacent cell and both completion cells are still free.
        \item<+-> Play the adjacent cell in that direction.
        \item<+-> The two possible completion cells are now two different winning threats. The judge can block at most one, so play the other one.
    \end{itemize}
\end{frame}
