; total time: 0.47
; plan length: 49
(move node4-4 node3-4)
(move node3-4 node3-3)
(move node3-3 node2-3)
(move node2-3 node1-3)
(move node1-3 node0-3)
(pickup node0-3 key3)
(move node0-3 node0-4)
(move node0-4 node1-4)
(move node1-4 node2-4)
(move node2-4 node2-3)
(move node2-3 node2-2)
(move node2-2 node2-1)
(move node2-1 node3-1)
(move node3-1 node4-1)
(unlock node4-1 node5-1 key3 square)
(move node4-1 node3-1)
(move node3-1 node3-0)
(putdown node3-0 key3)
(move node3-0 node3-1)
(move node3-1 node4-1)
(move node4-1 node5-1)
(pickup node5-1 key4)
(move node5-1 node4-1)
(move node4-1 node3-1)
(move node3-1 node2-1)
(move node2-1 node1-1)
(move node1-1 node1-2)
(move node1-2 node1-3)
(move node1-3 node1-4)
(move node1-4 node2-4)
(move node2-4 node3-4)
(move node3-4 node4-4)
(move node4-4 node5-4)
(move node5-4 node6-4)
(putdown node6-4 key4)
(move node6-4 node6-5)
(move node6-5 node6-6)
(move node6-6 node5-6)
(move node5-6 node4-6)
(move node4-6 node3-6)
(move node3-6 node2-6)
(move node2-6 node1-6)
(pickup node1-6 key0)
(move node1-6 node1-5)
(move node1-5 node1-4)
(move node1-4 node1-3)
(move node1-3 node1-2)
(move node1-2 node1-1)
(pickup-and-loose node1-1 key9 key0)
