n: 40 m: 393 packed: 13 density: 0 nodes: 0 solveTime: 16260 buildTime: 90 solved: true
{0,9,24}
{1,7,37}
{2,6,19}
{3,21,30}
{4,11,16}
{5,10,15}
{8,12,13}
{17,28,39}
{18,23,34}
{20,29,38}
{22,32,36}
{25,33,35}
{26,27,31}