n: 40 m: 501 packed: 13 density: 0 nodes: 0 solveTime: 23640 buildTime: 150 solved: true
{0,23,29}
{1,6,30}
{2,3,11}
{4,20,39}
{5,8,17}
{7,13,24}
{9,15,31}
{10,16,34}
{12,19,32}
{14,22,26}
{18,25,36}
{21,35,37}
{27,28,33}