n: 40 m: 356 packed: 13 density: 0 nodes: 0 solveTime: 5750 buildTime: 70 solved: true
{0,17,24}
{1,19,34}
{2,35,38}
{3,29,30}
{4,5,21}
{6,26,37}
{7,9,12}
{8,13,18}
{10,14,22}
{11,15,32}
{16,23,25}
{27,31,39}
{28,33,36}