n: 40 m: 485 packed: 13 density: 0 nodes: 0 solveTime: 18710 buildTime: 140 solved: true
{0,2,4}
{1,9,12}
{3,31,39}
{5,23,35}
{6,7,10}
{8,13,36}
{11,22,34}
{14,17,29}
{15,27,37}
{16,25,26}
{18,19,32}
{21,30,33}
{24,28,38}