n: 40 m: 942 packed: 13 density: 0 nodes: 0 solveTime: 301220 buildTime: 510 solved: true {0,21,37} {1,2,5} {3,6,13} {4,9,39} {8,35,38} {10,16,19} {11,24,32} {12,26,30} {14,25,36} {15,18,27} {17,28,31} {20,23,33} {22,29,34}