n: 40 m: 671 packed: 13 density: 0 nodes: 0 solveTime: 10860 buildTime: 260 solved: true
{0,11,17}
{1,10,12}
{2,23,27}
{3,7,8}
{4,20,38}
{5,25,36}
{6,31,34}
{9,21,32}
{13,22,30}
{14,16,26}
{18,29,37}
{19,28,33}
{24,35,39}