n: 30 m: 213 packed: 10 density: 0 nodes: 0 solveTime: 730 buildTime: 30 solved: true {0,2,20} {1,3,27} {4,24,25} {5,14,15} {6,9,18} {7,17,26} {8,13,19} {10,11,29} {12,23,28} {16,21,22}