n: 40 m: 274 packed: 13 density: 0 nodes: 0 solveTime: 1210 buildTime: 50 solved: true
{0,4,15}
{1,7,17}
{2,14,24}
{3,5,26}
{6,8,18}
{9,28,36}
{10,11,31}
{12,19,39}
{13,33,35}
{16,22,37}
{20,21,32}
{23,27,30}
{25,29,38}