n: 40 m: 515 packed: 13 density: 0 nodes: 0 solveTime: 72080 buildTime: 150 solved: true
{0,8,19}
{1,4,15}
{2,9,10}
{3,5,7}
{11,32,35}
{12,22,29}
{13,17,26}
{14,18,38}
{16,34,36}
{20,27,28}
{21,24,37}
{23,30,33}
{25,31,39}