n: 30 m: 137 packed: 10 density: 0 nodes: 0 solveTime: 410 buildTime: 10 solved: true {0,1,6} {2,20,28} {3,18,23} {4,16,27} {5,12,24} {7,8,21} {9,17,25} {10,13,29} {11,22,26} {14,15,19}