n: 40 m: 318 packed: 13 density: 0 nodes: 0 solveTime: 1660 buildTime: 60 solved: true
{0,21,30}
{1,2,15}
{3,5,20}
{4,24,37}
{6,26,28}
{7,17,34}
{8,27,38}
{9,23,35}
{10,12,16}
{11,29,39}
{13,19,22}
{14,18,36}
{25,32,33}