n: 40 m: 760 packed: 13 density: 0 nodes: 0 solveTime: 175430 buildTime: 350 solved: true
{0,10,19}
{1,6,35}
{2,5,20}
{3,8,9}
{4,7,11}
{12,22,29}
{14,33,34}
{15,18,25}
{16,23,31}
{17,36,39}
{21,26,28}
{24,27,32}
{30,37,38}