n: 40 m: 277 packed: 13 density: 0 nodes: 0 solveTime: 2730 buildTime: 40 solved: true
{0,17,18}
{1,26,35}
{2,11,36}
{3,9,23}
{4,5,7}
{6,13,32}
{8,16,39}
{10,31,34}
{12,28,38}
{14,22,37}
{15,21,29}
{19,25,30}
{20,27,33}