n: 40 m: 684 packed: 13 density: 0 nodes: 0 solveTime: 136790 buildTime: 270 solved: true
{0,4,15}
{1,7,19}
{2,3,8}
{5,6,17}
{9,10,39}
{11,33,37}
{12,31,36}
{13,27,35}
{14,18,29}
{16,22,30}
{20,25,38}
{23,26,28}
{24,32,34}