n: 50 m: 171 packed: 16 density: 0 nodes: 0 solveTime: 960 buildTime: 20 solved: true
{0,20,25}
{1,21,38}
{2,10,42}
{3,48,49}
{4,7,11}
{5,15,39}
{6,12,22}
{8,35,41}
{9,26,32}
{13,27,28}
{14,36,37}
{16,29,33}
{17,19,44}
{18,40,45}
{23,24,34}
{31,43,46}