n: 40 m: 514 packed: 13 density: 0 nodes: 0 solveTime: 47350 buildTime: 150 solved: true
{0,21,36}
{1,35,38}
{2,19,30}
{3,27,37}
{4,6,7}
{5,10,23}
{8,25,31}
{9,14,22}
{11,33,39}
{12,18,29}
{13,28,34}
{15,17,32}
{16,20,24}