n: 40 m: 229 packed: 13 density: 0 nodes: 0 solveTime: 880 buildTime: 30 solved: true {0,11,26} {1,16,27} {2,10,20} {3,32,37} {4,13,18} {5,15,23} {6,14,28} {7,29,30} {8,12,35} {9,25,34} {17,33,38} {19,22,24} {21,31,39}