n: 40 m: 435 packed: 13 density: 0 nodes: 0 solveTime: 16610 buildTime: 110 solved: true
{0,14,25}
{1,18,24}
{2,27,28}
{3,15,39}
{4,7,11}
{5,6,26}
{8,21,36}
{9,23,31}
{10,32,37}
{12,19,22}
{13,35,38}
{16,17,29}
{20,30,34}