n: 40 m: 432 packed: 13 density: 0 nodes: 0 solveTime: 19280 buildTime: 100 solved: true
{0,21,39}
{1,4,5}
{2,15,33}
{3,7,8}
{6,13,37}
{9,26,36}
{10,25,27}
{11,20,31}
{12,32,34}
{14,16,38}
{17,28,35}
{18,24,30}
{19,22,29}