n: 40 m: 535 packed: 13 density: 0 nodes: 0 solveTime: 19660 buildTime: 170 solved: true
{0,15,36}
{1,4,26}
{2,7,11}
{3,5,8}
{6,30,33}
{9,19,28}
{10,13,18}
{14,16,24}
{17,32,35}
{20,27,39}
{21,22,23}
{25,37,38}
{29,31,34}