n: 30 m: 121 packed: 10 density: 0 nodes: 0 solveTime: 630 buildTime: 10 solved: true {0,8,10} {1,12,19} {2,14,15} {3,27,28} {4,5,9} {6,25,29} {7,23,26} {11,16,21} {13,20,24} {17,18,22}