n: 40 m: 575 packed: 13 density: 0 nodes: 0 solveTime: 251270 buildTime: 200 solved: true
{0,9,11}
{1,8,37}
{2,3,18}
{4,6,13}
{5,10,23}
{7,33,38}
{12,21,31}
{14,15,19}
{16,24,32}
{17,22,28}
{20,25,26}
{27,34,36}
{29,30,39}