n: 40 m: 535 packed: 13 density: 0 nodes: 0 solveTime: 17890 buildTime: 170 solved: true
{0,8,17}
{1,11,19}
{2,4,5}
{3,7,24}
{6,30,33}
{9,10,15}
{12,22,37}
{13,28,32}
{14,34,35}
{16,36,38}
{18,25,39}
{20,26,29}
{21,27,31}