n: 40 m: 490 packed: 13 density: 0 nodes: 0 solveTime: 13170 buildTime: 140 solved: true {0,1,3} {2,34,36} {4,9,30} {5,21,27} {6,35,38} {7,12,22} {10,23,39} {11,29,37} {13,14,31} {15,16,24} {17,28,32} {18,25,33} {19,20,26}