n: 30 m: 301 packed: 10 density: 0 nodes: 0 solveTime: 2810 buildTime: 50 solved: true {0,8,16} {1,10,17} {2,12,21} {3,7,20} {4,13,23} {5,6,11} {9,24,29} {14,22,27} {15,19,25} {18,26,28}