n: 30 m: 153 packed: 10 density: 0 nodes: 0 solveTime: 100 buildTime: 10 solved: true {0,20,21} {1,13,15} {2,3,7} {4,16,23} {5,10,24} {6,26,27} {8,11,18} {9,14,22} {12,17,19} {25,28,29}