n: 40 m: 326 packed: 13 density: 0 nodes: 0 solveTime: 4130 buildTime: 60 solved: true
{0,20,30}
{1,17,33}
{2,19,32}
{3,22,25}
{4,23,28}
{5,13,18}
{6,15,29}
{7,10,27}
{8,26,31}
{9,21,36}
{11,38,39}
{12,34,37}
{14,24,35}