n: 30 m: 105 packed: 10 density: 0 nodes: 0 solveTime: 120 buildTime: 10 solved: true {0,6,9} {1,17,27} {2,18,29} {3,13,24} {4,10,15} {5,7,20} {8,16,19} {11,22,28} {12,21,23} {14,25,26}