n: 40 m: 311 packed: 13 density: 0 nodes: 0 solveTime: 3240 buildTime: 60 solved: true
{0,12,14}
{1,19,35}
{2,18,22}
{3,25,37}
{4,6,7}
{5,13,21}
{8,26,34}
{9,15,32}
{10,16,28}
{11,30,36}
{17,23,29}
{24,31,33}
{27,38,39}