n: 30 m: 220 packed: 10 density: 0 nodes: 0 solveTime: 590 buildTime: 30 solved: true {0,5,14} {1,10,27} {2,4,13} {3,22,23} {6,12,26} {7,24,25} {8,18,29} {9,11,21} {15,16,28} {17,19,20}