n: 40 m: 473 packed: 13 density: 0 nodes: 0 solveTime: 12700 buildTime: 130 solved: true
{0,26,27}
{1,2,7}
{3,5,16}
{4,11,22}
{6,19,36}
{8,9,28}
{10,35,37}
{12,17,18}
{13,15,31}
{14,24,39}
{20,33,38}
{23,29,32}
{25,30,34}