n: 40 m: 256 packed: 13 density: 0 nodes: 0 solveTime: 2030 buildTime: 40 solved: true {0,4,34} {1,5,38} {2,3,22} {6,9,28} {7,12,31} {8,10,13} {11,17,26} {14,15,18} {16,32,33} {19,25,35} {20,21,24} {23,29,39} {30,36,37}