n: 40 m: 249 packed: 13 density: 0 nodes: 0 solveTime: 1780 buildTime: 40 solved: true {0,37,39} {1,31,38} {2,7,27} {3,26,34} {4,9,13} {5,6,32} {8,12,23} {10,30,33} {11,17,19} {14,21,25} {15,18,20} {16,22,24} {28,29,36}