n: 40 m: 191 packed: 13 density: 0 nodes: 0 solveTime: 1130 buildTime: 30 solved: true
{0,9,17}
{1,15,26}
{2,19,20}
{3,24,36}
{4,12,18}
{5,23,31}
{6,25,27}
{7,8,16}
{10,13,21}
{11,34,35}
{22,32,38}
{28,29,39}
{30,33,37}