1 steps wm18953wm18953 signature 2224→8244 rule {{{1, 2, 3, 4}, {5, 6, 7, 8}, {2, 6}, {6, 2}} -> {{9, 3, 10, 11}, {12, 4, 13, 14}, {15, 7, 16, 17}, {18, 8, 19, 20}, {10, 14}, {14, 10}, {11, 19}, {19, 11}, {13, 17}, {17, 13}, {16, 20}, {20, 16}}} {{{1, 2, 3, 4}, {5, 6, 7, 8}, {2, 6}, {6, 2}} -> {{9, 3, 10, 11}, {12, 4, 13, 14}, {15, 7, 16, 17}, {18, 8, 19, 20}, {10, 14}, {14, 10}, {11, 19}, {19, 11}, {13, 17}, {17, 13}, {16, 20}, {20, 16}}}