n: 40 m: 582 packed: 13 density: 0 nodes: 0 solveTime: 38010 buildTime: 200 solved: true
{0,21,23}
{1,3,8}
{2,4,7}
{5,19,32}
{6,17,24}
{9,10,30}
{11,13,36}
{12,34,38}
{14,28,33}
{15,16,18}
{20,29,35}
{22,25,31}
{26,37,39}