n: 30 m: 173 packed: 10 density: 0 nodes: 0 solveTime: 610 buildTime: 20 solved: true {0,3,24} {1,9,18} {2,5,22} {4,15,23} {6,27,28} {7,12,25} {8,10,19} {11,17,21} {13,16,29} {14,20,26}