n: 40 m: 300 packed: 13 density: 0 nodes: 0 solveTime: 4280 buildTime: 50 solved: true
{0,12,15}
{1,13,18}
{2,14,22}
{3,8,26}
{4,10,20}
{5,11,16}
{6,27,36}
{7,25,30}
{9,19,34}
{17,37,39}
{21,23,28}
{24,33,38}
{29,31,32}