n: 40 m: 304 packed: 13 density: 0 nodes: 0 solveTime: 4760 buildTime: 50 solved: true
{0,18,39}
{1,3,6}
{2,10,28}
{4,7,34}
{5,8,21}
{9,12,19}
{11,30,38}
{13,20,29}
{14,26,35}
{15,17,37}
{16,31,36}
{22,25,32}
{23,24,33}