n: 40 m: 267 packed: 13 density: 0 nodes: 0 solveTime: 2100 buildTime: 50 solved: true
{0,8,18}
{1,6,38}
{2,3,11}
{4,7,36}
{5,10,19}
{9,15,33}
{12,17,37}
{13,14,21}
{16,23,25}
{20,26,31}
{24,34,35}
{27,29,32}
{28,30,39}