n: 40 m: 424 packed: 13 density: 0 nodes: 0 solveTime: 14300 buildTime: 110 solved: true
{0,13,28}
{1,3,15}
{2,21,27}
{4,23,24}
{5,17,25}
{6,14,38}
{7,18,20}
{8,26,35}
{9,11,37}
{10,19,39}
{12,31,32}
{16,29,30}
{33,34,36}