n: 30 m: 228 packed: 10 density: 0 nodes: 0 solveTime: 1420 buildTime: 30 solved: true {0,2,21} {1,7,29} {3,16,22} {4,11,13} {5,19,23} {6,24,28} {8,14,20} {9,12,17} {10,18,25} {15,26,27}