n: 30 m: 112 packed: 10 density: 0 nodes: 0 solveTime: 170 buildTime: 10 solved: true {0,4,10} {1,2,19} {3,28,29} {5,7,8} {6,9,20} {11,14,15} {12,17,23} {13,22,27} {16,21,24} {18,25,26}