n: 40 m: 577 packed: 13 density: 0 nodes: 0 solveTime: 33840 buildTime: 190 solved: true
{0,3,6}
{1,4,8}
{2,33,39}
{5,7,16}
{10,35,38}
{11,14,19}
{12,22,36}
{13,15,28}
{17,29,31}
{18,24,26}
{20,30,34}
{21,23,32}
{25,27,37}