n: 40 m: 437 packed: 13 density: 0 nodes: 0 solveTime: 13890 buildTime: 110 solved: true
{0,28,31}
{1,7,9}
{2,3,15}
{4,11,20}
{5,21,24}
{6,8,30}
{10,16,22}
{12,23,34}
{13,37,39}
{14,27,29}
{17,19,35}
{18,32,36}
{25,26,33}