n: 40 m: 164 packed: 13 density: 0 nodes: 0 solveTime: 360 buildTime: 20 solved: true {0,30,38} {1,16,35} {2,11,27} {3,4,22} {5,15,26} {6,23,36} {7,14,34} {8,17,21} {9,25,28} {10,33,37} {12,19,24} {13,20,29} {18,31,39}