n: 30 m: 631 packed: 10 density: 0 nodes: 0 solveTime: 29350 buildTime: 240 solved: true
{0,20,24}
{1,8,10}
{2,6,12}
{3,7,15}
{4,5,11}
{9,25,28}
{13,14,27}
{16,23,26}
{17,18,22}
{19,21,29}