n: 40 m: 140 packed: 13 density: 0 nodes: 0 solveTime: 770 buildTime: 20 solved: true {0,23,36} {1,2,28} {3,6,33} {4,9,16} {5,10,18} {7,14,24} {8,19,38} {11,20,35} {12,17,32} {13,29,34} {21,25,27} {22,30,37} {26,31,39}