n: 40 m: 218 packed: 13 density: 0 nodes: 0 solveTime: 1350 buildTime: 30 solved: true
{0,14,26}
{1,31,39}
{2,18,21}
{3,7,17}
{4,12,20}
{5,6,37}
{8,30,35}
{9,11,25}
{10,13,23}
{15,27,33}
{16,32,36}
{19,28,34}
{22,24,38}