n: 40 m: 198 packed: 13 density: 0 nodes: 0 solveTime: 910 buildTime: 20 solved: true
{0,14,18}
{1,25,26}
{2,21,39}
{3,9,38}
{4,17,24}
{5,6,8}
{7,33,36}
{10,34,37}
{11,20,22}
{12,15,32}
{13,16,29}
{19,27,35}
{23,30,31}