n: 40 m: 260 packed: 13 density: 0 nodes: 0 solveTime: 1630 buildTime: 40 solved: true
{0,5,6}
{1,17,37}
{2,7,13}
{3,16,35}
{4,20,22}
{8,27,32}
{9,21,30}
{10,28,33}
{11,31,34}
{12,38,39}
{14,19,24}
{18,25,26}
{23,29,36}