\b;Checkpoint \image waypoint 4 4; In the exercises, blue crosses indicate positions that have to be crossed. They disappear as soon as a \l;practice bot\u object\bottr; crosses them. \t;Transport Impossible. \t;Object \l;Category\u cbot\category; \c;WayPoint\n; \t;See also \l;CBOT Language\u cbot;, \l;Variables\u cbot\type; and \l;Categories\u cbot\category;.