n: 40 m: 287 packed: 13 density: 0 nodes: 0 solveTime: 2300 buildTime: 50 solved: true
{0,19,21}
{1,26,33}
{2,10,27}
{3,28,36}
{4,6,20}
{5,30,35}
{7,12,15}
{8,11,38}
{9,23,34}
{13,17,18}
{14,24,29}
{16,25,39}
{31,32,37}