\begin{Schunk}
\begin{Sinput}
> myPuzzle <- generateSudoku(Nblank = 20, print.it = F)
> printSudoku(myPuzzle)
\end{Sinput}
\begin{Soutput}
  +-------+-------+-------+
  | 9 3 6 |   1 2 | 5 7 8 |
  | 7   5 | 6 9 3 | 2 4 1 |
  | 1 2   | 7   5 | 6     |
  +-------+-------+-------+
  | 8 5   | 9 3 6 |   1 2 |
  | 2 4 1 |   5 7 | 9   6 |
  | 3 6   | 1   4 | 7   5 |
  +-------+-------+-------+
  | 5   8 | 3 6   | 1 2   |
  | 4   2 |   7 8 |   6 9 |
  | 6   3 | 2 4 1 | 8 5 7 |
  +-------+-------+-------+
\end{Soutput}
\end{Schunk}
