n: 40 m: 111 packed: 13 density: 0 nodes: 0 solveTime: 620 buildTime: 10 solved: true
{0,23,36}
{1,12,18}
{2,29,33}
{3,34,39}
{4,14,20}
{5,27,30}
{6,7,8}
{9,17,22}
{10,13,24}
{11,15,37}
{16,21,38}
{25,31,32}
{26,28,35}