n: 30 m: 421 packed: 10 density: 0 nodes: 0 solveTime: 7910 buildTime: 100 solved: true {0,1,13} {2,22,28} {3,9,18} {4,23,25} {5,15,29} {6,16,20} {7,8,12} {10,21,26} {11,14,24} {17,19,27}