n: 40 m: 177 packed: 13 density: 0 nodes: 0 solveTime: 780 buildTime: 20 solved: true
{0,28,29}
{1,14,18}
{2,4,37}
{3,10,22}
{5,11,39}
{6,24,38}
{7,20,25}
{8,13,35}
{9,23,31}
{12,16,30}
{15,17,19}
{21,26,36}
{27,32,33}