n: 40 m: 539 packed: 13 density: 0 nodes: 0 solveTime: 17550 buildTime: 170 solved: true
{0,11,36}
{1,27,39}
{2,31,38}
{3,7,14}
{4,12,30}
{5,23,34}
{6,8,19}
{9,21,28}
{10,35,37}
{13,15,26}
{16,17,18}
{20,24,29}
{25,32,33}