n: 40 m: 563 packed: 13 density: 0 nodes: 0 solveTime: 32550 buildTime: 180 solved: true {0,22,38} {1,10,36} {2,16,25} {3,8,19} {4,6,31} {5,9,33} {7,11,17} {12,13,35} {14,29,32} {15,18,34} {20,37,39} {21,24,30} {23,26,27}