n: 40 m: 285 packed: 13 density: 0 nodes: 0 solveTime: 3590 buildTime: 50 solved: true
{0,15,28}
{1,37,38}
{2,26,31}
{3,24,32}
{4,25,30}
{5,13,23}
{6,18,22}
{7,12,17}
{8,11,27}
{9,20,21}
{10,19,33}
{14,34,36}
{29,35,39}