n: 40 m: 504 packed: 13 density: 0 nodes: 0 solveTime: 24610 buildTime: 160 solved: true
{0,12,16}
{1,11,33}
{2,7,14}
{3,13,18}
{4,8,9}
{5,10,35}
{6,15,29}
{17,31,39}
{19,25,32}
{20,24,26}
{21,28,34}
{22,27,37}
{23,30,36}