n: 40 m: 158 packed: 13 density: 0 nodes: 0 solveTime: 310 buildTime: 20 solved: true {0,12,37} {1,31,34} {2,4,35} {3,11,19} {5,16,22} {6,14,24} {7,26,38} {8,25,36} {9,29,39} {10,21,23} {13,15,20} {18,30,32} {27,28,33}