n: 40 m: 242 packed: 13 density: 0 nodes: 0 solveTime: 1950 buildTime: 30 solved: true
{0,18,31}
{1,17,36}
{2,8,10}
{3,7,14}
{4,20,38}
{5,16,24}
{6,9,39}
{11,22,33}
{12,23,35}
{13,21,29}
{15,19,28}
{26,27,37}
{30,32,34}