n: 40 m: 146 packed: 13 density: 0 nodes: 0 solveTime: 270 buildTime: 10 solved: true
{0,20,30}
{1,14,15}
{2,6,21}
{3,19,38}
{4,24,29}
{5,7,35}
{8,27,33}
{9,23,32}
{10,31,39}
{11,12,16}
{13,18,22}
{17,26,37}
{28,34,36}