n: 40 m: 342 packed: 13 density: 0 nodes: 0 solveTime: 2510 buildTime: 70 solved: true
{0,14,21}
{1,15,23}
{2,18,20}
{3,33,38}
{4,29,35}
{5,12,28}
{6,16,39}
{7,8,19}
{9,24,26}
{10,13,17}
{11,25,31}
{22,32,36}
{30,34,37}