n: 40 m: 230 packed: 13 density: 0 nodes: 0 solveTime: 2210 buildTime: 30 solved: true
{0,20,38}
{1,17,33}
{2,27,29}
{3,10,22}
{4,23,28}
{5,7,14}
{6,21,31}
{8,11,24}
{9,34,37}
{12,15,30}
{13,18,19}
{16,25,26}
{32,35,39}