n: 40 m: 393 packed: 13 density: 0 nodes: 0 solveTime: 3220 buildTime: 90 solved: true
{0,30,33}
{1,2,5}
{3,28,39}
{4,27,29}
{6,18,21}
{7,25,38}
{8,23,32}
{9,14,17}
{10,19,36}
{11,16,26}
{12,20,24}
{13,34,37}
{15,22,35}