n: 40 m: 179 packed: 13 density: 0 nodes: 0 solveTime: 340 buildTime: 20 solved: true {0,11,28} {1,31,32} {2,20,25} {3,22,23} {4,13,18} {5,9,17} {6,15,29} {7,36,39} {8,12,37} {10,27,30} {14,19,26} {16,35,38} {21,24,34}