As for Me, the current statement of this problem declares that in both cases, either the dart flies through the target in its plane (0 0 0 0 1 0 1   2 0 0 -1 0 10) or it flies touching the target (0 0 5 0 0 1 1   1 0 0 -1 0 10), the answer must be the same! Not the "MISSED" in the first case and the "HIT" in the second one!