n: 30 m: 460 packed: 10 density: 0 nodes: 0 solveTime: 8200 buildTime: 130 solved: true
{0,18,28}
{1,3,15}
{2,5,8}
{4,12,26}
{6,14,27}
{7,10,21}
{9,17,29}
{11,13,19}
{16,23,24}
{20,22,25}