n: 40 m: 438 packed: 13 density: 0 nodes: 0 solveTime: 10920 buildTime: 110 solved: true
{0,19,35}
{1,2,5}
{3,10,23}
{4,7,8}
{6,21,30}
{9,25,38}
{11,13,36}
{14,31,37}
{15,34,39}
{16,24,27}
{17,20,29}
{18,22,32}
{26,28,33}