n: 30 m: 173 packed: 10 density: 0 nodes: 0 solveTime: 390 buildTime: 20 solved: true {0,2,14} {1,13,15} {3,11,29} {4,21,27} {5,6,24} {7,19,22} {8,9,25} {10,12,17} {16,20,28} {18,23,26}