n: 30 m: 249 packed: 10 density: 0 nodes: 0 solveTime: 1470 buildTime: 40 solved: true {0,3,5} {1,9,14} {2,21,28} {4,20,23} {6,24,25} {7,8,19} {10,12,13} {11,16,29} {15,17,26} {18,22,27}