n: 40 m: 251 packed: 13 density: 0 nodes: 0 solveTime: 3930 buildTime: 40 solved: true
{0,19,27}
{1,26,29}
{2,12,28}
{3,9,18}
{4,11,17}
{5,31,33}
{6,14,39}
{7,24,37}
{8,16,21}
{10,32,36}
{13,15,38}
{20,25,34}
{22,23,35}