+<p>
+ Every move you play can be changed by your opponent by a move arriving
+ on the same square.
+</p>
+
+<p>
+ Consequently, you play twice on each turn: first to select a move for
+ your opponent, then to choose one for you - which could be altered.
+</p>
+
+<p class="author">Fabrice Liardet (2005).</p>