n: 40 m: 154 packed: 13 density: 0 nodes: 0 solveTime: 1280 buildTime: 20 solved: true
{0,13,18}
{1,7,39}
{2,14,29}
{3,10,23}
{4,20,22}
{5,28,32}
{6,11,27}
{8,16,26}
{9,31,33}
{12,24,38}
{15,30,34}
{17,19,37}
{21,25,36}