Queen's Tour/Examples/3 x 3

Example of Queen's Tour

 * Queens-Tour-3x3.png

As can be seen, the queen's tour on a $3 \times 3$ chessboard can be achieved in $2 \times 3 - 2 = 4$ moves.

However, the queen needs to go outside the $3 \times 3$ chessboard in order to do it.