n: 40 m: 378 packed: 13 density: 0 nodes: 0 solveTime: 3200 buildTime: 80 solved: true
{0,28,33}
{1,23,30}
{2,3,4}
{5,7,10}
{6,12,15}
{8,20,34}
{9,17,18}
{11,26,38}
{13,19,22}
{14,32,39}
{16,27,29}
{21,25,37}
{31,35,36}