n: 40 m: 375 packed: 13 density: 0 nodes: 0 solveTime: 3680 buildTime: 90 solved: true
{0,11,16}
{1,34,38}
{2,12,33}
{3,7,22}
{4,9,17}
{5,31,36}
{8,10,20}
{13,32,37}
{14,15,39}
{18,24,29}
{19,25,30}
{21,26,35}
{23,27,28}