n: 40 m: 546 packed: 13 density: 0 nodes: 0 solveTime: 31090 buildTime: 170 solved: true
{0,11,16}
{1,4,8}
{2,6,20}
{3,5,12}
{7,10,28}
{9,35,38}
{14,31,37}
{15,19,26}
{17,22,39}
{18,25,33}
{21,30,32}
{23,27,29}
{24,34,36}