n: 40 m: 151 packed: 13 density: 0 nodes: 0 solveTime: 1120 buildTime: 20 solved: true
{0,3,19}
{1,28,35}
{2,15,37}
{4,16,38}
{5,30,32}
{6,7,13}
{8,14,17}
{10,24,34}
{11,12,31}
{18,33,36}
{20,25,26}
{21,23,27}
{22,29,39}