n: 40 m: 309 packed: 13 density: 0 nodes: 0 solveTime: 5310 buildTime: 50 solved: true
{0,27,30}
{1,6,32}
{2,8,13}
{3,7,19}
{4,9,12}
{5,11,22}
{10,25,28}
{14,33,35}
{15,23,34}
{16,17,36}
{20,24,29}
{21,26,31}
{37,38,39}