n: 30 m: 248 packed: 10 density: 0 nodes: 0 solveTime: 850 buildTime: 40 solved: true {0,10,26} {1,19,20} {2,7,16} {3,6,11} {4,5,15} {8,9,29} {12,17,25} {13,21,22} {14,18,24} {23,27,28}