n: 40 m: 613 packed: 13 density: 0 nodes: 0 solveTime: 21330 buildTime: 210 solved: true
{0,5,22}
{1,3,18}
{2,4,8}
{6,29,33}
{7,9,10}
{11,35,38}
{12,20,21}
{13,23,28}
{14,27,39}
{15,31,34}
{16,17,25}
{19,26,37}
{24,30,32}