field(1..3,1..3).
init_on(1,3).
goal_on(3,1).
connect(1,1,e).
connect(1,1,w).
connect(3,1,e).
connect(3,1,w).
connect(2,2,e).
connect(2,2,w).
connect(1,3,w).
connect(1,3,n).
connect(2,3,n).
connect(2,3,s).
connect(3,3,w).
connect(3,3,s).
max_steps(1).