optimal [(0, 1, 2, 3), (0, 1, 4, 5, 8), (0, 2, 3, 4, 5, 6, 7, 8), (1, 2, 6, 7, 8), (3, 4, 6), (5, 7)] (if conjecture about Ferrers Diagram Rank-Metric Codes is true: 59170 with optimal [(0, 1, 2, 3), (0, 1, 4, 6, 7), (0, 2, 4, 5, 7, 8), (1, 2, 5, 6, 8), (3, 4, 5), (3, 6, 7, 8)])
) : 59142