n: 40 m: 219 packed: 13 density: 0 nodes: 0 solveTime: 970 buildTime: 30 solved: true
{0,19,34}
{1,12,37}
{2,10,13}
{3,17,38}
{4,11,35}
{5,14,23}
{6,24,39}
{7,16,20}
{8,30,32}
{9,31,36}
{15,18,22}
{25,27,33}
{26,28,29}